diff --git a/rigify/rigs/experimental/super_chain.py b/rigify/rigs/experimental/super_chain.py
index 346c16b8ab85b14ede2cf5ffbe7f392fcac64dd1..a5af83235a65813a8a259a1228e5e35bb071ab92 100644
--- a/rigify/rigs/experimental/super_chain.py
+++ b/rigify/rigs/experimental/super_chain.py
@@ -558,7 +558,7 @@ class Rig:
         )
 
         invert_last = True
-        if self.params.wgt_align_axis not in {'y' or '-y'}:
+        if self.params.wgt_align_axis not in {'y', '-y'}:
             invert_last = False
 
         create_chain_widget(