diff --git a/inc/xcursordefs.h b/inc/xcursordefs.h
index fee24480..c12c4e73 100644
--- a/inc/xcursordefs.h
+++ b/inc/xcursordefs.h
@@ -4,6 +4,6 @@
 #include "devif.h"
 void Init_XCursor(void);
 void Set_XCursor(int x, int y);
-void init_Xcursor(Display *display, int window);
+void init_Xcursor(Display *display, Window window);
 void set_Xcursor(DspInterface dsp, unsigned char *bitmap, int hotspot_x, int hotspot_y, Cursor *return_cursor, int from_lisp);
 #endif
diff --git a/src/xcursor.c b/src/xcursor.c
index a5b95617..f0900e3b 100644
--- a/src/xcursor.c
+++ b/src/xcursor.c
@@ -149,7 +149,7 @@ void Set_XCursor(int x, int y)
 /*									*/
 /************************************************************************/
 
-void init_Xcursor(Display *display, int window)
+void init_Xcursor(Display *display, Window window)
 {
   TPRINT(("TRACE: init_Xcursor()\n"));