diff --git a/test_libs/pyspec/tests/test_sanity.py b/test_libs/pyspec/tests/test_sanity.py
index b54b5f75a..071f3f8b3 100644
--- a/test_libs/pyspec/tests/test_sanity.py
+++ b/test_libs/pyspec/tests/test_sanity.py
@@ -323,7 +323,6 @@ def test_attestation(state):
 
     assert len(test_state.current_epoch_attestations) == len(state.current_epoch_attestations) + 1
 
-    proposer_index = get_beacon_proposer_index(test_state)
 
     #
     # Epoch transition should move to previous_epoch_attestations