diff --git a/widget/src/windows/nsFilePicker.h b/widget/src/windows/nsFilePicker.h
index 58b31c3ff3f..1f669346767 100644
--- a/widget/src/windows/nsFilePicker.h
+++ b/widget/src/windows/nsFilePicker.h
@@ -106,7 +106,7 @@ class AutoRestoreWorkingPath
 public:
   AutoRestoreWorkingPath();
   ~AutoRestoreWorkingPath();
-  inline bool AutoRestoreWorkingPath::HasWorkingPath() const
+  inline bool HasWorkingPath() const
   {
     return mWorkingPath != NULL;
   }