diff --git a/wadsrc/static/zscript/doom/spidermaster.txt b/wadsrc/static/zscript/doom/spidermaster.txt
index 9a72a2bbe..5e1a39d76 100644
--- a/wadsrc/static/zscript/doom/spidermaster.txt
+++ b/wadsrc/static/zscript/doom/spidermaster.txt
@@ -14,7 +14,6 @@ class SpiderMastermind : Actor
 		Speed 12;
 		PainChance 40;
 		Monster;
-		MinMissileChance 160;
 		+BOSS
 		+MISSILEMORE
 		+FLOORCLIP