diff --git a/mods/ENTITIES/mcl_mobs/api.lua b/mods/ENTITIES/mcl_mobs/api.lua
index 4465bea6..a70ff6be 100644
--- a/mods/ENTITIES/mcl_mobs/api.lua
+++ b/mods/ENTITIES/mcl_mobs/api.lua
@@ -1292,12 +1292,13 @@ local do_jump = function(self)
 	if self.walk_chance == 0
 	or minetest.registered_items[nod.name].walkable then
 
-		if minetest.get_item_group(nod.name, "fence") == 0
+		local v = self.object:get_velocity()
+
+		if v.y == 0
+		and minetest.get_item_group(nod.name, "fence") == 0
 		and minetest.get_item_group(nod.name, "fence_gate") == 0
 		and minetest.get_item_group(nod.name, "wall") == 0 then
 
-			local v = self.object:get_velocity()
-
 			v.y = self.jump_height
 
 			set_animation(self, "jump") -- only when defined