diff --git a/mi/mi.h b/mi/mi.h
index 54150e370..bb818c872 100644
--- a/mi/mi.h
+++ b/mi/mi.h
@@ -280,13 +280,6 @@ extern _X_EXPORT void miPolylines(DrawablePtr pDrawable,
 
 /* miwindow.c */
 
-extern _X_EXPORT void miMoveWindow(WindowPtr /*pWin */ ,
-                                   int /*x */ ,
-                                   int /*y */ ,
-                                   WindowPtr /*pNextSib */ ,
-                                   VTKind       /*kind */
-    );
-
 extern _X_EXPORT void miResizeWindow(WindowPtr /*pWin */ ,
                                      int /*x */ ,
                                      int /*y */ ,
diff --git a/mi/mi_priv.h b/mi/mi_priv.h
index 6a4f60999..7d963a53b 100644
--- a/mi/mi_priv.h
+++ b/mi/mi_priv.h
@@ -15,6 +15,7 @@
 #include "include/pixmap.h"
 #include "include/regionstr.h"
 #include "include/screenint.h"
+#include "include/validate.h"
 #include "include/window.h"
 #include "mi/mi.h"
 
@@ -59,5 +60,6 @@ void miMarkWindow(WindowPtr pWin);
 Bool miMarkOverlappedWindows(WindowPtr pWin, WindowPtr pFirst,
                              WindowPtr *ppLayerWin);
 void miHandleValidateExposures(WindowPtr pWin);
+void miMoveWindow(WindowPtr pWin, int x, int y, WindowPtr pNextSib, VTKind kind);
 
 #endif /* _XSERVER_MI_PRIV_H */