diff --git a/src/os2/utils.cpp b/src/os2/utils.cpp
index b963638d6d..7509ab5766 100644
--- a/src/os2/utils.cpp
+++ b/src/os2/utils.cpp
@@ -22,6 +22,7 @@
 
 #include "wx/os2/private.h"
 #include "wx/apptrait.h"
+#include "wx/platinfo.h"
 
 #include <ctype.h>
 #ifdef __EMX__
diff --git a/src/os2/utilsgui.cpp b/src/os2/utilsgui.cpp
index a3779dee7f..b2d3455640 100644
--- a/src/os2/utilsgui.cpp
+++ b/src/os2/utilsgui.cpp
@@ -32,6 +32,7 @@
 #endif //WX_PRECOMP
 
 #include "wx/apptrait.h"
+#include "wx/platinfo.h"
 
 #include "wx/os2/private.h"     // includes <windows.h>