diff --git a/python/eth_contract_registry/runnable/list.py b/python/eth_contract_registry/runnable/list.py
index bb4abb3..9485dba 100644
--- a/python/eth_contract_registry/runnable/list.py
+++ b/python/eth_contract_registry/runnable/list.py
@@ -82,7 +82,7 @@ def main():
     identifier = config.get('_IDENTIFIER')
 
     registry_address = to_checksum_address(config.get('_EXEC_ADDRESS'))
-    if not config.true('_UNSAFE') and registry_address != add_0x(config.get('_EXEC_ADDRESS')):
+    if not config.true('_UNSAFE') and strip_0x(registry_address) != strip_0x(config.get('_EXEC_ADDRESS')):
         raise ValueError('invalid checksum address for contract')
 
     if identifier != None:
diff --git a/python/eth_contract_registry/runnable/set.py b/python/eth_contract_registry/runnable/set.py
index b4dbc50..c4e0c60 100644
--- a/python/eth_contract_registry/runnable/set.py
+++ b/python/eth_contract_registry/runnable/set.py
@@ -63,11 +63,11 @@ def main():
     c = ContractRegistry(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
 
     subject_address = to_checksum_address(config.get('_ADDRESS'))
-    if not config.true('_UNSAFE') and subject_address != add_0x(config.get('_ADDRESS')):
+    if not config.true('_UNSAFE') and strip_0x(subject_address) != strip_0x(config.get('_ADDRESS')):
         raise ValueError('invalid checksum address for subject_address')
 
     registry_address = to_checksum_address(config.get('_EXEC_ADDRESS'))
-    if not config.true('_UNSAFE') and registry_address != add_0x(config.get('_EXEC_ADDRESS')):
+    if not config.true('_UNSAFE') and strip_0x(registry_address) != strip_0x(config.get('_EXEC_ADDRESS')):
         raise ValueError('invalid checksum address for contract')
 
     chain_config_hash = config.get('_CHAIN_HASH')
diff --git a/python/setup.cfg b/python/setup.cfg
index 60399dc..424cf18 100644
--- a/python/setup.cfg
+++ b/python/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = eth-contract-registry
-version = 0.7.1
+version = 0.7.2a1
 description = Ethereum Smart Contract key-value registry
 author = Louis Holbrook
 author_email = dev@holbrook.no