diff --git a/mozilla/browser/components/bookmarks/src/nsBookmarksService.cpp b/mozilla/browser/components/bookmarks/src/nsBookmarksService.cpp
index 61a7fd7694f..9a87a31e7f4 100644
--- a/mozilla/browser/components/bookmarks/src/nsBookmarksService.cpp
+++ b/mozilla/browser/components/bookmarks/src/nsBookmarksService.cpp
@@ -4374,7 +4374,8 @@ nsBookmarksService::ArchiveBookmarksFile(PRBool forceArchive)
     nsCOMPtr<nsIFile> backupFile;
     if (forceArchive == PR_FALSE) {
         nsCOMPtr<nsISimpleEnumerator> existingBackups;
-        bookmarksBackupDir->GetDirectoryEntries(getter_AddRefs(existingBackups));
+        rv = bookmarksBackupDir->GetDirectoryEntries(getter_AddRefs(existingBackups));
+        NS_ENSURE_SUCCESS(rv, rv);
 
         nsStringArray backupFileNames;