diff --git a/src/kits/game/WindowScreen.cpp b/src/kits/game/WindowScreen.cpp
index efe8d1dcdd..fdbdfcc678 100644
--- a/src/kits/game/WindowScreen.cpp
+++ b/src/kits/game/WindowScreen.cpp
@@ -5,6 +5,12 @@
 
 #include <WindowScreen.h>
 
+
+void set_mouse_position(int32 x, int32 y)
+{
+}
+
+
 BWindowScreen::BWindowScreen(const char *title,
 							 uint32 space,
 							 status_t *error,