diff --git a/monstergen.cpp b/monstergen.cpp
index f52439c8..52aebe2b 100644
--- a/monstergen.cpp
+++ b/monstergen.cpp
@@ -321,6 +321,8 @@ EX eItem wanderingTreasure(cell *c) {
   return treasureType(l);
   }
 
+EX bool dont_gen_asteroids = false;
+
 /** generate the wandering monsters */
 EX void wandering() {
   #if CAP_COMPLEX2
@@ -568,7 +570,7 @@ EX void wandering() {
       continue;
       }
 
-    else if(c->land == laAsteroids) {
+    else if(c->land == laAsteroids && !dont_gen_asteroids) {
       int gen = 0;
       if(asteroids_generated * 12 <= items[itAsteroid]) gen = 2;
       if(gen == 0) {