diff --git a/zspecial.acs b/zspecial.acs
index 4571b6e..2454be0 100644
--- a/zspecial.acs
+++ b/zspecial.acs
@@ -108,6 +108,7 @@ special
 //	101:Scroll_Texture_Right
 //	102:Scroll_Texture_Up
 //	103:Scroll_Texture_Down
+	104:Ceiling_CrushAndRaiseSilentDist(4,5),
 
 	109:Light_ForceLightning(1),
 	110:Light_RaiseByValue(2),