diff --git a/lesscpy/lessc/parser.py b/lesscpy/lessc/parser.py
index 753f701..2f99b1a 100644
--- a/lesscpy/lessc/parser.py
+++ b/lesscpy/lessc/parser.py
@@ -189,12 +189,13 @@ class LessParser(object):
             self.handle_error(e, p)
             p[0] = None
         self.scope.pop()
+        self.scope.add_block(block)
             
     def p_block_replace(self, p):
         """ block_decl               : identifier ';'
         """
         m = p[1].parse(None)
-        block = self.scope.blocks(m)
+        block = self.scope.blocks(m.raw())
         if block:
             p[0] = block.copy(self.scope.current)
         else:
diff --git a/lesscpy/lessc/scope.py b/lesscpy/lessc/scope.py
index 47a5f2f..c4b09a7 100644
--- a/lesscpy/lessc/scope.py
+++ b/lesscpy/lessc/scope.py
@@ -39,7 +39,7 @@ class Scope(list):
         """
         """
         self[-1]['__blocks__'].append(block)
-        self[-1]['__names__'].append(block.name.strip())
+        self[-1]['__names__'].append(block.raw())
         
     def add_mixin(self, mixin):
         """
@@ -74,14 +74,15 @@ class Scope(list):
         i = len(self)
         while i >= 0:
             i -= 1
+            print(name, self[i]['__names__'])
             if name in self[i]['__names__']:
                 for b in self[i]['__blocks__']:
-                    if b.name.strip() == name:
+                    if b.raw() == name:
                         return b
             else:
                 # deep search
                 for b in self[i]['__blocks__']:
-                    if name.startswith(b.name):
+                    if name.startswith(b.raw()):
                         b = utility.blocksearch(b, name)
                         if b: return b
         return False
diff --git a/lesscpy/lessc/utility.py b/lesscpy/lessc/utility.py
index b238011..7453afb 100644
--- a/lesscpy/lessc/utility.py
+++ b/lesscpy/lessc/utility.py
@@ -40,8 +40,8 @@ def blocksearch(block, name):
     """
     print('blocksearch', name)
     for b in block.inner:
-        print('cmp', b.name, name)
-        if b.name == name:
+        print('cmp', b.raw(), name)
+        if b.raw() == name:
             return b
         else:#if name.startswith(b.name):
             return blocksearch(b, name)
diff --git a/lesscpy/plib/block.py b/lesscpy/plib/block.py
index 5e8e734..aef9ec6 100644
--- a/lesscpy/plib/block.py
+++ b/lesscpy/plib/block.py
@@ -24,6 +24,9 @@ class Block(Node):
                 self.inner = [p.parse(scope) for p in self.inner]
         return self
     
+    def raw(self):
+        return self.name.raw()
+    
     def format(self, fills):
         """
         """
diff --git a/lesscpy/plib/identifier.py b/lesscpy/plib/identifier.py
index ae783d1..85e8a4b 100644
--- a/lesscpy/plib/identifier.py
+++ b/lesscpy/plib/identifier.py
@@ -54,6 +54,11 @@ class Identifier(Node):
                 parsed.append(' ')
             parsed.extend(name)
         return parsed
+    
+    def raw(self):
+        """
+        """
+        return '%'.join('%'.join(p) for p in self.parsed)
         
     
     def format(self, fills):
diff --git a/lesscpy/test/testidentifier.py b/lesscpy/test/testidentifier.py
index 8c90943..7a7d147 100644
--- a/lesscpy/test/testidentifier.py
+++ b/lesscpy/test/testidentifier.py
@@ -79,7 +79,10 @@ class TestIdentifier(unittest.TestCase):
                                                   '.a .next .d .deep, '
                                                   '.b .next .c .deep, '
                                                   '.b .next .d .deep')
-
+        self.assertEqual(id.raw(), '.a% %.next% %.c% %.deep%.a%'
+                                   ' %.next% %.d% %.deep%.b% %.next%'
+                                   ' %.c% %.deep%.b% %.next% %.d% %.deep')
+                         
 if __name__ == '__main__':
     unittest.main()
     
\ No newline at end of file
diff --git a/lesscpy/test/testscope.py b/lesscpy/test/testscope.py
new file mode 100644
index 0000000..1e3fd83
--- /dev/null
+++ b/lesscpy/test/testscope.py
@@ -0,0 +1,11 @@
+import unittest
+if __name__ == '__main__':
+    import bootstrap
+from lesscpy.lessc.scope import Scope
+from lesscpy.plib.identifier import Identifier
+
+class TestIdentifier(unittest.TestCase):   
+    pass
+
+if __name__ == '__main__':
+    unittest.main()
\ No newline at end of file