diff --git a/landgen.cpp b/landgen.cpp
index 09f5c9a8..fd6c76a7 100644
--- a/landgen.cpp
+++ b/landgen.cpp
@@ -2214,7 +2214,7 @@ void giantLandSwitch(cell *c, int d, cell *from) {
           c2->mondir = neighborId(c2, c1);
           }
         }
-      if(d == 7 && c->landparam == 2) forCellEx(c2, c) if(out_ruin(c2)) c->landparam = 1;
+      if(d == 7 && c->landparam == 2) forCellEx(c2, c) if(c2->land == laRuins && out_ruin(c2)) c->landparam = 1;
       ONEMPTY {
         if(hrand(1500) < PT(30 + kills[moHexDemon] + kills[moSkeleton] + kills[moMonk] + kills[moPair], 100) && notDippingFor(itRuins)) {
           c->item = itRuins;