diff --git a/src/video/sdl_v.h b/src/video/sdl_v.h
--- a/src/video/sdl_v.h
+++ b/src/video/sdl_v.h
@@ -31,6 +31,8 @@ public:
 
 	/* virtual */ bool AfterBlitterChange();
 
+	/* virtual */ bool ClaimMousePointer();
+
 	/* virtual */ const char *GetName() const { return "sdl"; }
 };