diff --git a/src/motif/utils.cpp b/src/motif/utils.cpp
index ba245b3dba..179a3a43d6 100644
--- a/src/motif/utils.cpp
+++ b/src/motif/utils.cpp
@@ -17,6 +17,9 @@
 // headers
 // ----------------------------------------------------------------------------
 
+#ifdef __VMS
+#define XtDisplay XTDISPLAY
+#endif
 #include "wx/setup.h"
 #include "wx/utils.h"
 #include "wx/app.h"