diff --git a/deployment/address_book.go b/deployment/address_book.go
index fbac20586c1..f02ef35ec77 100644
--- a/deployment/address_book.go
+++ b/deployment/address_book.go
@@ -94,7 +94,7 @@ type AddressBookMap struct {
 }
 
 // Save will save an address for a given chain selector. It will error if there is a conflicting existing address.
-func (m *AddressBookMap) Save(chainSelector uint64, address string, typeAndVersion TypeAndVersion) error {
+func (m *AddressBookMap) save(chainSelector uint64, address string, typeAndVersion TypeAndVersion) error {
 	family, err := chainsel.GetSelectorFamily(chainSelector)
 	if err != nil {
 		return errors.Wrapf(ErrInvalidChainSelector, "chain selector %d", chainSelector)
@@ -110,6 +110,9 @@ func (m *AddressBookMap) Save(chainSelector uint64, address string, typeAndVersi
 			return errors.Wrapf(ErrInvalidAddress, "address %s is not a valid Ethereum address, only Ethereum addresses supported for EVM chains", address)
 		}
 	}
+
+	// TODO NONEVM-960: Add validation for non-EVM chain addresses
+
 	if typeAndVersion.Type == "" {
 		return fmt.Errorf("type cannot be empty")
 	}
diff --git a/deployment/address_book_test.go b/deployment/address_book_test.go
index 9040902a169..4a3d3d95853 100644
--- a/deployment/address_book_test.go
+++ b/deployment/address_book_test.go
@@ -44,6 +44,10 @@ func TestAddressBook_Save(t *testing.T) {
 	err = ab.Save(chainsel.TEST_90000001.Selector, common.HexToAddress("0x0").Hex(), onRamp100)
 	require.Error(t, err)
 
+	// Zero address but non evm chain
+	err = NewMemoryAddressBook().Save(chainsel.APTOS_MAINNET.Selector, common.HexToAddress("0x0").Hex(), onRamp100)
+	require.NoError(t, err)
+
 	// Distinct address same TV will not
 	err = ab.Save(chainsel.TEST_90000001.Selector, addr2, onRamp100)
 	require.NoError(t, err)