diff --git a/mi/mi.h b/mi/mi.h
index 3a65f4cb1..d9e328e9e 100644
--- a/mi/mi.h
+++ b/mi/mi.h
@@ -284,6 +284,10 @@ extern _X_EXPORT void miPolylines(DrawablePtr pDrawable,
                                   int npt,
                                   DDXPointPtr pPts);
 
+/* miwindow.c */
+
+extern _X_EXPORT WindowPtr miXYToWindow(ScreenPtr pScreen, SpritePtr pSprite, int x, int y);
+
 /* mizerarc.c */
 
 extern _X_EXPORT void miZeroPolyArc(DrawablePtr /*pDraw */ ,
diff --git a/mi/mi_priv.h b/mi/mi_priv.h
index 281e2e376..a158ccb4a 100644
--- a/mi/mi_priv.h
+++ b/mi/mi_priv.h
@@ -67,6 +67,5 @@ void miSetShape(WindowPtr pWin, int kind);
 void miChangeBorderWidth(WindowPtr pWin, unsigned int width);
 void miMarkUnrealizedWindow(WindowPtr pChild, WindowPtr pWin, Bool fromConfigure);
 WindowPtr miSpriteTrace(SpritePtr pSprite, int x, int y);
-WindowPtr miXYToWindow(ScreenPtr pScreen, SpritePtr pSprite, int x, int y);
 
 #endif /* _XSERVER_MI_PRIV_H */