diff --git a/extensions/transformiix/source/xslt/XSLTProcessor.cpp b/extensions/transformiix/source/xslt/XSLTProcessor.cpp
index f883d1650b6b..b5f9611c6ccd 100644
--- a/extensions/transformiix/source/xslt/XSLTProcessor.cpp
+++ b/extensions/transformiix/source/xslt/XSLTProcessor.cpp
@@ -1051,7 +1051,7 @@ txXSLTProcessor::processDefaultTemplate(ProcessorState* aPs,
 PRBool
 FindUri(nsString& aElement, void *aData)
 {
-    return !aElement.Equals(*NS_STATIC_CAST(const nsAString*, aData));
+    return !aElement.Equals(*NS_STATIC_CAST(nsAString*, aData));
 }
 
 void