diff --git a/rogueviz/gobot.cpp b/rogueviz/gobot.cpp
index 2a470f02..cfad5e32 100644
--- a/rogueviz/gobot.cpp
+++ b/rogueviz/gobot.cpp
@@ -52,6 +52,8 @@ bool draw_go(cell *c, const shiftmatrix& V);
 
 void init_go_board() {
   ac = currentmap->allcells();
+  current.taken.clear();
+  current.owner.clear();
   current.taken.resize(isize(ac), 2);
   current.owner.resize(isize(ac), 2);
   current.captures[0] = 0;