diff --git a/spawners_mobs/spawners_mobs.lua b/spawners_mobs/spawners_mobs.lua
index 867267f..f13a95c 100644
--- a/spawners_mobs/spawners_mobs.lua
+++ b/spawners_mobs/spawners_mobs.lua
@@ -241,7 +241,7 @@ function spawners_mobs.create(mob_name, mod_prefix, size, offset, mesh, texture,
 		},
 		neighbors = {"air"},
 		interval = 10,
-		chance = 20,
+		chance = 10,
 		catch_up = false,
 		action = function(pos, node, active_object_count, active_object_count_wider)