diff --git a/rigify/rigs/limbs/front_paw.py b/rigify/rigs/limbs/front_paw.py
index 83cbbd8166b9a350b84da70f7707e6610df46e34..30582d60932f2d62453855b01cbc7e21567599ff 100644
--- a/rigify/rigs/limbs/front_paw.py
+++ b/rigify/rigs/limbs/front_paw.py
@@ -58,7 +58,7 @@ class Rig(pawRig):
         ik_chain, tail_chain, fk_chain = super().get_ik_fk_position_chains()
         assert not tail_chain
         if not self.use_heel2:
-            return [*ik_chain, ik_chain[-1]], [*fk_chain, fk_chain[-1]]
+            return [*ik_chain, ik_chain[-1]], [], [*fk_chain, fk_chain[-1]]
         return ik_chain, tail_chain, fk_chain
 
     def get_extra_ik_controls(self):
diff --git a/rigify/rigs/limbs/rear_paw.py b/rigify/rigs/limbs/rear_paw.py
index cdbbd91e0d625ee052ae1e5c000a66991682ef49..d0d349e87dddd523e08f2218f9debe13c12cfea5 100644
--- a/rigify/rigs/limbs/rear_paw.py
+++ b/rigify/rigs/limbs/rear_paw.py
@@ -58,7 +58,7 @@ class Rig(pawRig):
         ik_chain, tail_chain, fk_chain = super().get_ik_fk_position_chains()
         assert not tail_chain
         if not self.use_heel2:
-            return [*ik_chain, ik_chain[-1]], [*fk_chain, fk_chain[-1]]
+            return [*ik_chain, ik_chain[-1]], [], [*fk_chain, fk_chain[-1]]
         return ik_chain, tail_chain, fk_chain
 
     def get_extra_ik_controls(self):