diff --git a/include/wx/treectrl.h b/include/wx/treectrl.h
index 69fd0f050b..9316245e99 100644
--- a/include/wx/treectrl.h
+++ b/include/wx/treectrl.h
@@ -22,7 +22,7 @@
 #elif defined(__WXMAC__)
     #include "wx/generic/treectlg.h"
 #elif defined(__WXPM__)
-    #include "wx/generic/treectlg.h"
+    #include "wx/os2/treectrl.h"
 #endif
 
 /*