diff --git a/barriers.cpp b/barriers.cpp
index dafd13c3..50dea472 100644
--- a/barriers.cpp
+++ b/barriers.cpp
@@ -559,6 +559,7 @@ EX bool isbar4(cell *c) {
   }  
 
 EX bool barrier_cross(eLand l, eLand r) {
+  if(land_structure == lsVineWalls) return false;
   if(l == laCrossroads3 || r == laCrossroads3) return hrand(100) < 66;
   if(land_structure == lsCrossWalls && !among(laCrossroads2, l, r)) return hrand(100) < 90;
   if(isElemental(l) && isElemental(r)) return hrand(100) < 75;