diff --git a/mobf/mov_gen_none.lua b/mobf/mov_gen_none.lua
index 9d1bdb9..57da01c 100644
--- a/mobf/mov_gen_none.lua
+++ b/mobf/mov_gen_none.lua
@@ -54,8 +54,12 @@ function mgen_none.callback(entity,now)
 													entity.data.movement.canfly)
 	
 	entity.object:setacceleration({x=0,y=default_y_acceleration,z=0})
-	entity.object:setvelocity({x=0,y=speed.y,z=0})
 	
+	if default_y_acceleration ~= 0 then
+		entity.object:setvelocity({x=0,y=speed.y,z=0})
+	else
+		entity.object:setvelocity({x=0,y=0,z=0})
+	end
 	
 end