diff --git a/include/wx/filename.h b/include/wx/filename.h
index b2abdf4569..95cbb18de5 100644
--- a/include/wx/filename.h
+++ b/include/wx/filename.h
@@ -367,9 +367,10 @@ public:
     void RemoveLastDir() { RemoveDir(GetDirCount() - 1); }
 
     // Other accessors
-    void SetExt( const wxString &ext )          { m_ext = ext; }
+    void SetExt( const wxString &ext )          { m_ext = ext; m_hasExt = true; }
+    void SetNoExt()                             { m_ext = wxEmptyString; m_hasExt = false; }
     wxString GetExt() const                     { return m_ext; }
-    bool HasExt() const                         { return !m_ext.empty(); }
+    bool HasExt() const                         { return m_hasExt; }
 
     void SetName( const wxString &name )        { m_name = name; }
     wxString GetName() const                    { return m_name; }