diff --git a/include/wx/gtk/listbox.h b/include/wx/gtk/listbox.h
index 5ffaa706c4..f45f92ac42 100644
--- a/include/wx/gtk/listbox.h
+++ b/include/wx/gtk/listbox.h
@@ -12,7 +12,7 @@
 #define __GTKLISTBOXH__
 
 #ifdef __GNUG__
-#pragma interface
+#pragma interface "listbox.h"
 #endif
 
 #include "wx/list.h"
diff --git a/include/wx/gtk1/listbox.h b/include/wx/gtk1/listbox.h
index 5ffaa706c4..f45f92ac42 100644
--- a/include/wx/gtk1/listbox.h
+++ b/include/wx/gtk1/listbox.h
@@ -12,7 +12,7 @@
 #define __GTKLISTBOXH__
 
 #ifdef __GNUG__
-#pragma interface
+#pragma interface "listbox.h"
 #endif
 
 #include "wx/list.h"