diff --git a/spine-lua/SkeletonClipping.lua b/spine-lua/SkeletonClipping.lua
index 928f63e33..08e04b1b4 100644
--- a/spine-lua/SkeletonClipping.lua
+++ b/spine-lua/SkeletonClipping.lua
@@ -75,7 +75,7 @@ function SkeletonClipping:clipStart(slot, clip)
 end
 
 function SkeletonClipping:clipEnd(slot)
-	if self.clipAttachment and self.clipAttachment.endSlot == slot then self:clipEnd2() end
+	if self.clipAttachment and self.clipAttachment.endSlot == slot.data then self:clipEnd2() end
 end
 
 function SkeletonClipping:clipEnd2()