diff --git a/xpfe/appshell/src/nsCommandLineServiceMac.cpp b/xpfe/appshell/src/nsCommandLineServiceMac.cpp
index de437acba58b..844de46f69ab 100644
--- a/xpfe/appshell/src/nsCommandLineServiceMac.cpp
+++ b/xpfe/appshell/src/nsCommandLineServiceMac.cpp
@@ -1006,7 +1006,7 @@ nsIWebShellWindow* FindWebShellWindow(nsIXULWindowCallbacks* inCallbacks)
     	nsnull,
     	urlObj, // nsIURI* of chrome
     	PR_TRUE,
-    	*aWindow,
+    	&aWindow,
         nsnull,
         inCallbacks, // callbacks
         windowWidth, windowHeight);
diff --git a/xpfe/components/startup/src/nsCommandLineServiceMac.cpp b/xpfe/components/startup/src/nsCommandLineServiceMac.cpp
index de437acba58b..844de46f69ab 100644
--- a/xpfe/components/startup/src/nsCommandLineServiceMac.cpp
+++ b/xpfe/components/startup/src/nsCommandLineServiceMac.cpp
@@ -1006,7 +1006,7 @@ nsIWebShellWindow* FindWebShellWindow(nsIXULWindowCallbacks* inCallbacks)
     	nsnull,
     	urlObj, // nsIURI* of chrome
     	PR_TRUE,
-    	*aWindow,
+    	&aWindow,
         nsnull,
         inCallbacks, // callbacks
         windowWidth, windowHeight);