diff --git a/mozilla/embedding/components/commandhandler/src/nsCommandManager.cpp b/mozilla/embedding/components/commandhandler/src/nsCommandManager.cpp
index 93f2536f959..e3cac98d70e 100644
--- a/mozilla/embedding/components/commandhandler/src/nsCommandManager.cpp
+++ b/mozilla/embedding/components/commandhandler/src/nsCommandManager.cpp
@@ -116,6 +116,7 @@ nsCommandManager::Init(nsIDOMWindow *aWindow)
   
   NS_ASSERTION(aWindow, "Need non-null window here");
   mWindow = aWindow;      // weak ptr
+  NS_ENSURE_TRUE(mObserversTable.Init(), NS_ERROR_OUT_OF_MEMORY);
   return NS_OK;
 }