diff --git a/tests/core/pyspec/eth2spec/test/helpers/forks.py b/tests/core/pyspec/eth2spec/test/helpers/forks.py
index d6d88876a..82ff12ff1 100644
--- a/tests/core/pyspec/eth2spec/test/helpers/forks.py
+++ b/tests/core/pyspec/eth2spec/test/helpers/forks.py
@@ -5,7 +5,7 @@ from .constants import (
 
 def is_post_fork(a, b):
     if a == EIP4844:
-        return b in [PHASE0, ALTAIR, BELLATRIX, EIP4844]
+        return b in [PHASE0, ALTAIR, BELLATRIX, CAPELLA, EIP4844]
     if a == CAPELLA:
         return b in [PHASE0, ALTAIR, BELLATRIX, CAPELLA]
     if a == BELLATRIX: