diff --git a/landgen.cpp b/landgen.cpp
index b90288f9..0cddf6bc 100644
--- a/landgen.cpp
+++ b/landgen.cpp
@@ -815,6 +815,10 @@ void giantLandSwitch(cell *c, int d, cell *from) {
         if(pseudohept(c) && hrand(100) < 40 && c->wall == waNone) {
           c->wall = waTerraWarrior;
           c->landparam = randterra ? 0 : 3 + hrand(3);
+          if(hrand(100) > items[itTerra]-10)
+            c->landparam--;
+          if(hrand(100) > items[itTerra]-10)
+            c->landparam--;
           }
         }
       ONEMPTY {