diff --git a/mozilla/extensions/layout-debug/src/nsLayoutDebuggingTools.cpp b/mozilla/extensions/layout-debug/src/nsLayoutDebuggingTools.cpp
index 734a191b57b..18d9153f38a 100644
--- a/mozilla/extensions/layout-debug/src/nsLayoutDebuggingTools.cpp
+++ b/mozilla/extensions/layout-debug/src/nsLayoutDebuggingTools.cpp
@@ -401,8 +401,7 @@ DumpContentRecur(nsIDocShell* aDocShell, FILE* out)
         fprintf(out, "docshell=%p \n", NS_STATIC_CAST(void*, aDocShell));
         nsCOMPtr<nsIDocument> doc(document(aDocShell));
         if (doc) {
-            nsCOMPtr<nsIContent> root;
-            doc->GetRootContent(getter_AddRefs(root));
+            nsIContent *root = doc->GetRootContent();
             if (root) {
                 root->List(out);
             }