diff --git a/rigs/game/face/skin_eye.py b/rigs/game/face/skin_eye.py
index 4dcc32a..b1651e2 100644
--- a/rigs/game/face/skin_eye.py
+++ b/rigs/game/face/skin_eye.py
@@ -25,8 +25,9 @@ def parent_deform_chain(self):
     @stage.rig_bones
     def rig_deform_chain(self):
         super().rig_deform_chain()
-        self.make_constraint(self.bones.deform.eye, 'COPY_LOCATION', self.bones.mch.master)
-        self.make_constraint(self.bones.deform.eye, 'COPY_ROTATION', self.bones.mch.master)
+        if hasattr(self.bones.deform, 'eye'):
+            self.make_constraint(self.bones.deform.eye, 'COPY_LOCATION', self.bones.mch.master)
+            self.make_constraint(self.bones.deform.eye, 'COPY_ROTATION', self.bones.mch.master)
 
 
 def create_sample(obj):