diff --git a/layout/html/base/src/nsHTMLTagContent.h b/layout/html/base/src/nsHTMLTagContent.h
index 9619df075b4..d09842d12a9 100644
--- a/layout/html/base/src/nsHTMLTagContent.h
+++ b/layout/html/base/src/nsHTMLTagContent.h
@@ -141,7 +141,7 @@ public:
    *   percent         (n%),
    *   or proportional (n*)
    */
-  static void nsHTMLTagContent::ParseValueOrPercentOrProportional(const nsString& aString,
+  static void ParseValueOrPercentOrProportional(const nsString& aString,
     																										          nsHTMLValue& aResult, 
 																												          nsHTMLUnit aValueUnit);