diff --git a/mozilla/modules/libpr0n/decoders/icon/nsIconURI.h b/mozilla/modules/libpr0n/decoders/icon/nsIconURI.h
index 6ca82d4a5af..4f9e15c2ece 100644
--- a/mozilla/modules/libpr0n/decoders/icon/nsIconURI.h
+++ b/mozilla/modules/libpr0n/decoders/icon/nsIconURI.h
@@ -43,7 +43,7 @@
 #include "nsIIconURI.h"
 #include "nsCOMPtr.h"
 #include "nsString.h"
-class nsStaticAtom;
+struct nsStaticAtom;
 
 class nsIAtom;