diff --git a/lesscpy/lessc/parser.py b/lesscpy/lessc/parser.py
index caf1e95..ff8fce4 100644
--- a/lesscpy/lessc/parser.py
+++ b/lesscpy/lessc/parser.py
@@ -165,7 +165,7 @@ class LessParser(object):
                     self.scope.update(recurse.scope)
                 else:
                     err = "Cannot import '%s', file not found" % filename
-                    self.handle_error(err, p, 'W')
+                    self.handle_error(err, p.lineno(1), 'W')
                 p[0] = None
             except ImportError as e:
                 self.handle_error(e, p)
@@ -248,13 +248,19 @@ class LessParser(object):
                 self.handle_error(e, p.lineno(2))
         else:
             self.handle_error('Call unknown mixin `%s`' % p[1], p.lineno(2))
+            
+    def p_mixin_args_arguments(self, p):
+        """ mixin_args                : less_arguments
+        """
+        p[0] = [p[1]]
 
     def p_mixin_args_aux(self, p):
         """ mixin_args                : mixin_args ',' argument
                                       | mixin_args ',' mixin_kwarg
+                                      | mixin_args argument
+                                      | mixin_args mixin_kwarg
         """
-        p[1].append(p[2])
-        p[1].append(p[3])
+        p[1].extend(list(p)[2:])
         p[0] = p[1]
 
     def p_mixin_args(self, p):
@@ -349,6 +355,7 @@ class LessParser(object):
     def p_style_list_aux(self, p):
         """ style_list              : style_list style
                                     | style_list ',' style
+                                    | style_list t_ws style
         """
         p[1].extend(list(p)[2:])
         p[0] = p[1]
@@ -495,7 +502,7 @@ class LessParser(object):
         p[0] = p[1]
         
     def p_argument_list(self, p):
-        """ argument_list    : argument
+        """ argument_list       : argument
         """
         p[0] = [p[1]]
         
diff --git a/lesscpy/scripts/compiler.py b/lesscpy/scripts/compiler.py
index 2019c8e..14ea7e0 100644
--- a/lesscpy/scripts/compiler.py
+++ b/lesscpy/scripts/compiler.py
@@ -44,7 +44,7 @@ def ldirectory(inpath, outpath, args, scope):
                                   lex_optimize=True,
                                   yacc_optimize=True,
                                   scope=scope,
-                                  yacctab=yacctab,
+                                  tabfile=yacctab,
                                   verbose=args.verbose)
             p.parse(filename=lf, debuglevel=0)
             css = f.format(p, args.minify, args.xminify)
@@ -115,7 +115,7 @@ def run():
                                   yacc_debug=False,
                                   lex_optimize=True,
                                   yacc_optimize=True,
-                                  yacctab=yacctab,
+                                  tabfile=yacctab,
                                   verbose=args.verbose)
             p.parse(filename=u, debuglevel=0)
             if not scope:
diff --git a/lesscpy/test/css/elements.css b/lesscpy/test/css/elements.css
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/lesscpy/test/css/elements.css
@@ -0,0 +1 @@
+
diff --git a/lesscpy/test/css/elements.min.css b/lesscpy/test/css/elements.min.css
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/lesscpy/test/css/elements.min.css
@@ -0,0 +1 @@
+
diff --git a/lesscpy/test/css/mixin-args.css b/lesscpy/test/css/mixin-args.css
index 1bcf2e3..9515b8f 100644
--- a/lesscpy/test/css/mixin-args.css
+++ b/lesscpy/test/css/mixin-args.css
@@ -53,3 +53,6 @@
 .arguments3 {
 	border: 1px solid red;
 }
+.arguments4 {
+	border: 1px solid red;
+}
diff --git a/lesscpy/test/css/mixin-args.min.css b/lesscpy/test/css/mixin-args.min.css
index 8762006..aa4aaec 100644
--- a/lesscpy/test/css/mixin-args.min.css
+++ b/lesscpy/test/css/mixin-args.min.css
@@ -13,3 +13,4 @@
 .arguments2{border:1px;}
 .arguments3{border:0px;}
 .arguments3{border:1px solid red;}
+.arguments4{border:1px solid red;}
diff --git a/lesscpy/test/less/elements.less b/lesscpy/test/less/elements.less
new file mode 100644
index 0000000..e0a3fb5
--- /dev/null
+++ b/lesscpy/test/less/elements.less
@@ -0,0 +1,136 @@
+/*---------------------------------------------------
+    LESS Elements 0.6
+  ---------------------------------------------------
+    A set of useful LESS mixins by Dmitry Fadeyev
+    Special thanks for mixin suggestions to:
+      Kris Van Herzeele,
+      Benoit Adam,
+      Portenart Emile-Victor,
+      Ryan Faerman
+
+    More info at: http://lesselements.com
+-----------------------------------------------------*/
+
+.gradient(@color: #F5F5F5, @start: #EEE, @stop: #FFF) {
+  background: @color;
+  background: -webkit-gradient(linear,
+                               left bottom,
+                               left top,
+                               color-stop(0, @start),
+                               color-stop(1, @stop));
+  background: -ms-linear-gradient(bottom,
+                                  @start,
+                                  @stop);
+  background: -moz-linear-gradient(center bottom,
+                                   @start 0%,
+                                   @stop 100%);
+}
+.bw-gradient(@color: #F5F5F5, @start: 0, @stop: 255) {
+  background: @color;
+  background: -webkit-gradient(linear,
+                               left bottom,
+                               left top,
+                               color-stop(0, rgb(@start,@start,@start)),
+                               color-stop(1, rgb(@stop,@stop,@stop)));
+  background: -ms-linear-gradient(bottom,
+                                  rgb(@start,@start,@start) 0%,
+                                  rgb(@start,@start,@start) 100%);
+  background: -moz-linear-gradient(center bottom,
+                                   rgb(@start,@start,@start) 0%,
+                                   rgb(@stop,@stop,@stop) 100%);
+}
+.bordered(@top-color: #EEE, @right-color: #EEE, @bottom-color: #EEE, @left-color: #EEE) {
+  border-top: solid 1px @top-color;
+  border-left: solid 1px @left-color;
+  border-right: solid 1px @right-color;
+  border-bottom: solid 1px @bottom-color;
+}
+.drop-shadow(@x-axis: 0, @y-axis: 1px, @blur: 2px, @alpha: 0.1) {
+  -webkit-box-shadow: @x-axis @y-axis @blur rgba(0, 0, 0, @alpha);
+  -moz-box-shadow: @x-axis @y-axis @blur rgba(0, 0, 0, @alpha);
+  box-shadow: @x-axis @y-axis @blur rgba(0, 0, 0, @alpha);
+}
+.rounded(@radius: 2px) {
+  -webkit-border-radius: @radius;
+  -moz-border-radius: @radius;
+  border-radius: @radius;
+  -moz-background-clip: padding; -webkit-background-clip: padding-box; background-clip: padding-box; 
+}
+.border-radius(@topright: 0, @bottomright: 0, @bottomleft: 0, @topleft: 0) {
+  -webkit-border-top-right-radius: @topright;
+  -webkit-border-bottom-right-radius: @bottomright;
+  -webkit-border-bottom-left-radius: @bottomleft;
+  -webkit-border-top-left-radius: @topleft;
+  -moz-border-radius-topright: @topright;
+  -moz-border-radius-bottomright: @bottomright;
+  -moz-border-radius-bottomleft: @bottomleft;
+  -moz-border-radius-topleft: @topleft;
+  border-top-right-radius: @topright;
+  border-bottom-right-radius: @bottomright;
+  border-bottom-left-radius: @bottomleft;
+  border-top-left-radius: @topleft;
+  -moz-background-clip: padding; -webkit-background-clip: padding-box; background-clip: padding-box; 
+}
+.opacity(@opacity: 0.5) {
+  -moz-opacity: @opacity;
+  -khtml-opacity: @opacity;
+  -webkit-opacity: @opacity;
+  opacity: @opacity;
+}
+.transition-duration(@duration: 0.2s) {
+  -moz-transition-duration: @duration;
+  -webkit-transition-duration: @duration;
+  transition-duration: @duration;
+}
+.rotation(@deg:5deg){
+  -webkit-transform: rotate(@deg);
+  -moz-transform: rotate(@deg);
+  transform: rotate(@deg);
+}
+.scale(@ratio:1.5){
+  -webkit-transform:scale(@ratio);
+  -moz-transform:scale(@ratio);
+  transform:scale(@ratio);
+}
+.transition(@duration:0.2s, @ease:ease-out) {
+  -webkit-transition: all @duration @ease;
+  -moz-transition: all @duration @ease;
+  transition: all @duration @ease;
+}
+.inner-shadow(@horizontal:0, @vertical:1px, @blur:2px, @alpha: 0.4) {
+  -webkit-box-shadow: inset @horizontal @vertical @blur rgba(0, 0, 0, @alpha);
+  -moz-box-shadow: inset @horizontal @vertical @blur rgba(0, 0, 0, @alpha);
+  box-shadow: inset @horizontal @vertical @blur rgba(0, 0, 0, @alpha);
+}
+.box-shadow(@arguments) {
+  -webkit-box-shadow: @arguments;
+  -moz-box-shadow: @arguments;
+  box-shadow: @arguments;
+}
+.columns(@colwidth: 250px, @colcount: 0, @colgap: 50px, @columnRuleColor: #EEE, @columnRuleStyle: solid, @columnRuleWidth: 1px) {
+  -moz-column-width: @colwidth;
+  -moz-column-count: @colcount;
+  -moz-column-gap: @colgap;
+  -moz-column-rule-color: @columnRuleColor;
+  -moz-column-rule-style: @columnRuleStyle;
+  -moz-column-rule-width: @columnRuleWidth;
+  -webkit-column-width: @colwidth;
+  -webkit-column-count: @colcount;
+  -webkit-column-gap: @colgap;
+  -webkit-column-rule-color: @columnRuleColor;
+  -webkit-column-rule-style: @columnRuleStyle;
+  -webkit-column-rule-width: @columnRuleWidth;
+  column-width: @colwidth;
+  column-count: @colcount;
+  column-gap: @colgap;
+  column-rule-color: @columnRuleColor;
+  column-rule-style: @columnRuleStyle;
+  column-rule-width: @columnRuleWidth;
+}
+.translate(@x:0, @y:0) {
+  -moz-transform: translate(@x, @y);
+  -webkit-transform: translate(@x, @y);
+  -o-transform: translate(@x, @y);
+  -ms-transform: translate(@x, @y);
+  transform: translate(@x, @y);
+}
diff --git a/lesscpy/test/less/imports.less b/lesscpy/test/less/imports.less
index baf734e..84004b5 100644
--- a/lesscpy/test/less/imports.less
+++ b/lesscpy/test/less/imports.less
@@ -18,4 +18,4 @@
 	.mixin;
 	.mixf(6px);
 	height: @imported;
-}
\ No newline at end of file
+}
diff --git a/lesscpy/test/less/mixin-args.less b/lesscpy/test/less/mixin-args.less
index 2905398..e40b83f 100644
--- a/lesscpy/test/less/mixin-args.less
+++ b/lesscpy/test/less/mixin-args.less
@@ -103,4 +103,7 @@
 }
 .arguments3 {
     .arguments_empty(1px, solid, red);
+}
+.arguments4 {
+    .arguments_empty(1px solid red);
 }
\ No newline at end of file