diff --git a/lesscpy/test/css/identifiers.css b/lesscpy/test/css/identifiers.css
index 7741d09..f169ec7 100644
--- a/lesscpy/test/css/identifiers.css
+++ b/lesscpy/test/css/identifiers.css
@@ -208,3 +208,6 @@ section {
 .asterisk_last * {
 	padding: 0;
 }
+.class_no_3 {
+	padding: -3px;
+}
diff --git a/lesscpy/test/css/identifiers.min.css b/lesscpy/test/css/identifiers.min.css
index 81ce7d8..555b1e2 100644
--- a/lesscpy/test/css/identifiers.min.css
+++ b/lesscpy/test/css/identifiers.min.css
@@ -32,3 +32,4 @@ html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abb
 article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{padding:0;}
 #f7{color:#fff777;}
 .asterisk_last *{padding:0;}
+.class_no_3{padding:-3px;}
diff --git a/lesscpy/test/less/identifiers.less b/lesscpy/test/less/identifiers.less
index 610844f..341a597 100644
--- a/lesscpy/test/less/identifiers.less
+++ b/lesscpy/test/less/identifiers.less
@@ -129,4 +129,8 @@ footer, header, hgroup, menu, nav, section {
 }
 .asterisk_last * { 
 	padding: 0;
+}
+@var: 3;
+(~".class_no_@{var}") {
+	padding: @var * -1px;
 }
\ No newline at end of file