diff --git a/include/wx/apptrait.h b/include/wx/apptrait.h
index 5b136f473c..dcc488e1e2 100644
--- a/include/wx/apptrait.h
+++ b/include/wx/apptrait.h
@@ -221,7 +221,7 @@ public:
     #include "wx/unix/apptrait.h"
 #elif defined(__WXMAC__)
     #include "wx/mac/apptrait.h"
-#elif defined(__OS2__)
+#elif defined(__WXPM__)
     #include "wx/os2/apptrait.h"
 #else 
     // at least, we need an implementation of GetToolkitInfo !