diff --git a/syntax/cs.vim b/syntax/cs.vim
index 052ec9f..a073815 100644
--- a/syntax/cs.vim
+++ b/syntax/cs.vim
@@ -69,7 +69,7 @@ syn region csEnclosed start="(" end=")" contains=csIface,csClass
 syn region csInherits start=":" end="{" contains=csIface,csClass
 
 " Attributes
-syn region csAttributeLine start="^\s*\[" end="\]\s*$" contains=csString
+syn region csAttributeLine start="^\s*\[" end="\]\s*$" contains=csString, csCharacter, csNumber, csType
 
 
 " Comments
diff --git a/test/sample.cs b/test/sample.cs
index a6c1b04..1e0051f 100644
--- a/test/sample.cs
+++ b/test/sample.cs
@@ -42,7 +42,7 @@ public Car() : base()
         }
 
         [Bind(Name="Mark",
-                Second="Harris")]
+                Second="Harris", Given = 20)]
         public Engine StartEngine()
         {