diff --git a/src/os2/dc.cpp b/src/os2/dc.cpp
index 6644a2f340..c43a2d3193 100644
--- a/src/os2/dc.cpp
+++ b/src/os2/dc.cpp
@@ -22,6 +22,7 @@
     #include "wx/dcmemory.h"
     #include "wx/log.h"
     #include "wx/icon.h"
+    #include "wx/msgdlg.h"
 #endif
 
 #include "wx/dcprint.h"