diff --git a/landgen.cpp b/landgen.cpp
index ddd18ad1..e01eaa10 100644
--- a/landgen.cpp
+++ b/landgen.cpp
@@ -2625,7 +2625,7 @@ EX void giantLandSwitch(cell *c, int d, cell *from) {
         eWall wetwalls[10] = {waNone, waNone, waDeepWater, waDeepWater, waDeepWater, waShallow, waShallow, waShallow, waStone, waStone};
         c->wall = wetwalls[hrand(10)]; // wet::wetdata[windmap::getId(c)]];
         if(among(c->wall, waDeepWater, waShallow) && hrand_monster(2000) < 2 * (items[itWet] + yendor::hardness() + 5))
-          c->monst = hrand(100) > 90 ? moRusalka : moPike;
+          c->monst = hrand(100) >= 90 ? moRusalka : moPike;
         if(c->wall == waShallow && hrand(2000) < PT(100 + 2 * kills[moPike] + 3 * kills[moRusalka], 200) && notDippingFor(itWet))
           c->item = itWet;
         }