diff --git a/mozilla/suite/browser/src/nsBookmarksService.cpp b/mozilla/suite/browser/src/nsBookmarksService.cpp
index 67a8f152319..a6fc8d0e032 100644
--- a/mozilla/suite/browser/src/nsBookmarksService.cpp
+++ b/mozilla/suite/browser/src/nsBookmarksService.cpp
@@ -2438,7 +2438,7 @@ nsBookmarksService::OnStopRequest(nsIRequest* request, nsISupports *ctxt,
 					interfaces->GetInterface(NS_GET_IID(nsIPrompt), getter_AddRefs(prompter));
 				if (!prompter)
 				{
-					nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService("@mozilla.org/embedcomp/window-watcher;1"));
+					nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService(NS_WINDOWWATCHER_CONTRACTID));
 					if (wwatch)
 						wwatch->GetNewPrompter(0, getter_AddRefs(prompter));
 				}
@@ -2511,7 +2511,7 @@ nsBookmarksService::OnStopRequest(nsIRequest* request, nsISupports *ctxt,
 			{
 				if (NS_SUCCEEDED(rv))
 				{
-					nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService("@mozilla.org/embedcomp/window-watcher;1"));
+					nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService(NS_WINDOWWATCHER_CONTRACTID));
 					if (wwatch)
 					{
 						nsCOMPtr<nsIDOMWindow> newWindow;