diff --git a/src/Umbraco.Web/umbraco.presentation/umbraco/webservices/codeEditorSave.asmx.cs b/src/Umbraco.Web/umbraco.presentation/umbraco/webservices/codeEditorSave.asmx.cs
index 722abb3d18..08efdbaa48 100644
--- a/src/Umbraco.Web/umbraco.presentation/umbraco/webservices/codeEditorSave.asmx.cs
+++ b/src/Umbraco.Web/umbraco.presentation/umbraco/webservices/codeEditorSave.asmx.cs
@@ -60,7 +60,7 @@ namespace umbraco.presentation.webservices
 
 
                         //deletes the old css file if the name was changed... 
-                        if (fileName != oldName)
+                        if (fileName.ToLowerInvariant() != oldName.ToLowerInvariant())
                         {
                             string p = IOHelper.MapPath(SystemDirectories.Css + "/" + oldName + ".css");
                             if (System.IO.File.Exists(p))