diff --git a/desktop_version/src/Input.cpp b/desktop_version/src/Input.cpp
index 81f251e2..821e5f8a 100644
--- a/desktop_version/src/Input.cpp
+++ b/desktop_version/src/Input.cpp
@@ -2145,6 +2145,7 @@ void mapmenuactionpress()
 
         map.scrolldir = 0;
         map.colstate = ((int) (map.colstate / 5)) * 5;
+        map.bypos = 0;
         map.nexttowercolour();
 
         // Fix delta rendering glitch