diff --git a/ape_safe/client/mock.py b/ape_safe/client/mock.py
index a8b6862..28b859b 100644
--- a/ape_safe/client/mock.py
+++ b/ape_safe/client/mock.py
@@ -146,8 +146,6 @@ def delegator_for_delegate(self, delegate: AddressType) -> Optional[AddressType]
         return None
 
     def add_delegate(self, delegate: AddressType, label: str, delegator: AccountAPI):
-        delegate = self.conversion_manager.convert(delegate, AddressType)
-
         if delegator.address not in self.safe_details.owners:
             raise SafeClientException(f"'{delegator}' not a valid owner.")
 
@@ -158,8 +156,6 @@ def add_delegate(self, delegate: AddressType, label: str, delegator: AccountAPI)
             self.delegates[delegator.address] = [delegate]
 
     def remove_delegate(self, delegate: AddressType, delegator: AccountAPI):
-        delegate = self.conversion_manager.convert(delegate, AddressType)
-
         if delegator.address not in self.safe_details.owners:
             raise SafeClientException(f"'{delegator.address}' not a valid owner.")
 
diff --git a/tests/functional/test_delegates.py b/tests/functional/test_delegates.py
index 9b1eeec..9270098 100644
--- a/tests/functional/test_delegates.py
+++ b/tests/functional/test_delegates.py
@@ -7,13 +7,13 @@ def test_manage_delegates(safe, delegate, OWNERS):
     owner = OWNERS[0]
     assert owner.address not in safe.client.get_delegates()
 
-    safe.client.add_delegate(delegate, "pepito", owner)
+    safe.client.add_delegate(delegate.address, "pepito", owner)
     assert delegate.address in safe.client.get_delegates()[owner.address]
     assert delegate.address in safe.all_delegates()
     # NOTE: Only in MockSafeClient
     assert safe.client.delegator_for_delegate(delegate.address) == owner.address
 
-    safe.client.remove_delegate(delegate, owner)
+    safe.client.remove_delegate(delegate.address, owner)
     assert owner.address not in safe.client.get_delegates()
 
     with pytest.raises(SafeClientException):
@@ -32,7 +32,7 @@ def test_delegate_can_propose_safe_tx(safe, delegate, OWNERS):
         # Not a delegate or signer
         safe.propose_safe_tx(safe_tx, submitter=delegate)
 
-    safe.client.add_delegate(delegate, "pepito", owner)
+    safe.client.add_delegate(delegate.address, "pepito", owner)
     safe.propose_safe_tx(safe_tx, submitter=delegate)
 
     assert len(safe.get_api_confirmations(safe_tx)) == 0