diff --git a/HTMLKit/CSSAttributeSelector.m b/HTMLKit/CSSAttributeSelector.m
index 79b5055..c959635 100644
--- a/HTMLKit/CSSAttributeSelector.m
+++ b/HTMLKit/CSSAttributeSelector.m
@@ -82,7 +82,7 @@
 		}
 		case CSSAttributeSelectorNot:
 		{
-			return ![element[_name] isEqualTo:_value];
+			return ![element[_name] isEqualToString:_value];
 		}
 		default:
 			return NO;