diff --git a/include/wx/msw/missing.h b/include/wx/msw/missing.h
index 44d5571655..af457c428f 100644
--- a/include/wx/msw/missing.h
+++ b/include/wx/msw/missing.h
@@ -220,10 +220,6 @@
     #define TB_SETDISABLEDIMAGELIST (WM_USER + 54)
 #endif // !defined(TB_SETDISABLEDIMAGELIST)
 
-#ifndef CFM_BACKCOLOR
-    #define CFM_BACKCOLOR 0x04000000
-#endif
-
 #ifndef HANGUL_CHARSET
     #define HANGUL_CHARSET 129
 #endif
diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp
index 847c18921e..25b0c3d5ff 100644
--- a/src/msw/textctrl.cpp
+++ b/src/msw/textctrl.cpp
@@ -72,6 +72,10 @@
 
 #include "wx/msw/missing.h"
 
+#ifndef CFM_BACKCOLOR
+    #define CFM_BACKCOLOR 0x04000000
+#endif
+
 #if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
 
 // dummy value used for m_dropTarget, different from any valid pointer value