diff --git a/smallmap_gui.c b/smallmap_gui.c
--- a/smallmap_gui.c
+++ b/smallmap_gui.c
@@ -1013,7 +1013,6 @@ static Widget _extra_view_port_widgets[]
 static void ExtraViewPortWndProc(Window *w, WindowEvent *e)
 {
 	ViewPort *vp = w->viewport;
-	int button = 4;
 
 	switch(e->event) {
 	case WE_PAINT: {