diff --git a/eth2deposit/utils/validation.py b/eth2deposit/utils/validation.py
index 5d1416e..23a513d 100644
--- a/eth2deposit/utils/validation.py
+++ b/eth2deposit/utils/validation.py
@@ -60,10 +60,10 @@ def validate_deposit(deposit_data_dict: Dict[str, Any], credential: Credential)
     # Verify withdrawal credential
     if len(withdrawal_credentials) != 32:
         return False
-    if withdrawal_credentials[:1] == BLS_WITHDRAWAL_PREFIX:
+    if withdrawal_credentials[:1] == BLS_WITHDRAWAL_PREFIX == credential.withdrawal_prefix:
         if withdrawal_credentials[1:] != SHA256(credential.withdrawal_pk)[1:]:
             return False
-    elif withdrawal_credentials[:1] == ETH1_ADDRESS_WITHDRAWAL_PREFIX:
+    elif withdrawal_credentials[:1] == ETH1_ADDRESS_WITHDRAWAL_PREFIX == credential.withdrawal_prefix:
         if withdrawal_credentials[1:12] != b'\x00' * 11:
             return False
         if credential.eth1_withdrawal_address is None: