diff --git a/x/bank/legacy/v043/store.go b/x/bank/legacy/v043/store.go
index 76e4518829..0d42c5b6f1 100644
--- a/x/bank/legacy/v043/store.go
+++ b/x/bank/legacy/v043/store.go
@@ -61,7 +61,7 @@ func migrateBalanceKeys(store sdk.KVStore) {
 	for ; oldStoreIter.Valid(); oldStoreIter.Next() {
 		addr := v040bank.AddressFromBalancesStore(oldStoreIter.Key())
 		denom := oldStoreIter.Key()[v040auth.AddrLen:]
-		newStoreKey := append(types.CreateAccountBalancesPrefix(addr.Bytes()), denom...)
+		newStoreKey := types.CreatePrefixedAccountStoreKey(addr, denom)
 
 		// Set new key on store. Values don't change.
 		store.Set(newStoreKey, oldStoreIter.Value())
diff --git a/x/bank/legacy/v043/store_test.go b/x/bank/legacy/v043/store_test.go
index 63226ab89a..d5238a163a 100644
--- a/x/bank/legacy/v043/store_test.go
+++ b/x/bank/legacy/v043/store_test.go
@@ -90,13 +90,13 @@ func TestBalanceKeysMigration(t *testing.T) {
 	err = v043bank.MigrateStore(ctx, bankKey, encCfg.Marshaler)
 	require.NoError(t, err)
 
-	newKey := append(types.CreateAccountBalancesPrefix(addr.Bytes()), []byte(fooCoin.Denom)...)
+	newKey := types.CreatePrefixedAccountStoreKey(addr, []byte(fooCoin.Denom))
 	// -7 because we replaced "balances" with 0x02,
 	// +1 because we added length-prefix to address.
 	require.Equal(t, len(oldFooKey)-7+1, len(newKey))
 	require.Nil(t, store.Get(oldFooKey))
 	require.Equal(t, fooBz, store.Get(newKey))
 
-	newKeyFooBar := append(types.CreateAccountBalancesPrefix(addr.Bytes()), []byte(fooBarCoin.Denom)...)
+	newKeyFooBar := types.CreatePrefixedAccountStoreKey(addr, []byte(fooBarCoin.Denom))
 	require.Nil(t, store.Get(newKeyFooBar)) // after migration zero balances pruned from store.
 }
diff --git a/x/bank/types/key.go b/x/bank/types/key.go
index db9d88819a..2e8cfdbcf4 100644
--- a/x/bank/types/key.go
+++ b/x/bank/types/key.go
@@ -51,3 +51,9 @@ func AddressFromBalancesStore(key []byte) (sdk.AccAddress, error) {
 func CreateAccountBalancesPrefix(addr []byte) []byte {
 	return append(BalancesPrefix, address.MustLengthPrefix(addr)...)
 }
+
+// CreatePrefixedAccountStoreKey returns the key for the given account and denomination.
+// This method can be used when performing an ABCI query for the balance of an account.
+func CreatePrefixedAccountStoreKey(addr []byte, denom []byte) []byte {
+	return append(CreateAccountBalancesPrefix(addr), denom...)
+}