diff --git a/include/wx/gtk1/msgdlg.h b/include/wx/gtk1/msgdlg.h
index 90a80811b5..e3436cb912 100644
--- a/include/wx/gtk1/msgdlg.h
+++ b/include/wx/gtk1/msgdlg.h
@@ -18,7 +18,7 @@
 // type is an 'or' (|) of wxOK, wxCANCEL, wxYES_NO
 // Returns wxYES/NO/OK/CANCEL
 
-WXDLLIMPEXP_DATA_CORE(extern const wxChar) wxMessageBoxCaptionStr[];
+extern WXDLLIMPEXP_DATA_CORE(const wxChar) wxMessageBoxCaptionStr[];
 
 class WXDLLIMPEXP_CORE wxMessageDialog: public wxDialog, public wxMessageDialogBase
 {
diff --git a/include/wx/motif/accel.h b/include/wx/motif/accel.h
index 5ae1a3a2fa..fb90ecb0b0 100644
--- a/include/wx/motif/accel.h
+++ b/include/wx/motif/accel.h
@@ -34,7 +34,7 @@ public:
     wxAcceleratorEntry* GetEntries() const;
 };
 
-WXDLLIMPEXP_DATA_CORE(extern wxAcceleratorTable) wxNullAcceleratorTable;
+extern WXDLLIMPEXP_DATA_CORE(wxAcceleratorTable) wxNullAcceleratorTable;
 
 #endif
 // _WX_ACCEL_H_
diff --git a/include/wx/msgdlg.h b/include/wx/msgdlg.h
index 958e46a782..04da533c8c 100644
--- a/include/wx/msgdlg.h
+++ b/include/wx/msgdlg.h
@@ -19,7 +19,7 @@
 #include "wx/dialog.h"
 #include "wx/stockitem.h"
 
-WXDLLIMPEXP_DATA_CORE(extern const char) wxMessageBoxCaptionStr[];
+extern WXDLLIMPEXP_DATA_CORE(const char) wxMessageBoxCaptionStr[];
 
 // ----------------------------------------------------------------------------
 // wxMessageDialogBase: base class defining wxMessageDialog interface