diff --git a/tests/core/pyspec/eth2spec/test/validator/test_validator_unittest.py b/tests/core/pyspec/eth2spec/test/validator/test_validator_unittest.py
index 1dfa0e4d0..0ac1e7b46 100644
--- a/tests/core/pyspec/eth2spec/test/validator/test_validator_unittest.py
+++ b/tests/core/pyspec/eth2spec/test/validator/test_validator_unittest.py
@@ -314,6 +314,19 @@ def test_get_block_signature(spec, state):
     )
 
 
+@with_all_phases
+@spec_state_test
+def test_compute_fork_digest(spec, state):
+    actual_fork_digest = spec.compute_fork_digest(state.fork.current_version, state.genesis_validators_root)
+
+    expected_fork_data_root = spec.hash_tree_root(
+        spec.ForkData(current_version=state.fork.current_version,
+                      genesis_validators_root=state.genesis_validators_root))
+    expected_fork_digest = spec.ForkDigest(expected_fork_data_root[:4])
+
+    assert actual_fork_digest == expected_fork_digest
+
+
 # Attesting