diff --git a/mozilla/security/manager/ssl/src/nsSDR.cpp b/mozilla/security/manager/ssl/src/nsSDR.cpp
index 1eb1147460c..b75ff83c288 100644
--- a/mozilla/security/manager/ssl/src/nsSDR.cpp
+++ b/mozilla/security/manager/ssl/src/nsSDR.cpp
@@ -362,7 +362,7 @@ LogoutAndTeardown()
 }
 
 /* void setWindow(in nsISupports w); */
-nsresult nsSecretDecoderRing::
+NS_IMETHODIMP nsSecretDecoderRing::
 SetWindow(nsISupports *w)
 {
   return NS_OK;