diff --git a/mozilla/accessible/src/base/nsRootAccessible.cpp b/mozilla/accessible/src/base/nsRootAccessible.cpp
index 9540eea4b3e..0b64bce7685 100644
--- a/mozilla/accessible/src/base/nsRootAccessible.cpp
+++ b/mozilla/accessible/src/base/nsRootAccessible.cpp
@@ -364,7 +364,7 @@ nsRootAccessible::GetCaretAccessible()
   if (mCaretAccessible) {
     NS_ADDREF(NS_STATIC_CAST(nsISupports*, mCaretAccessible));
   }
-  return NS_STATIC_CAST(nsCaretAccessible*, mCaretAccessible);
+  return mCaretAccessible.get();
 }
 
 void nsRootAccessible::TryFireEarlyLoadEvent(nsIDOMNode *aDocNode)