diff --git a/test/functional/rpc_fundrawtransaction.py b/test/functional/rpc_fundrawtransaction.py
index 5f7a0586e..6b9c9c15b 100755
--- a/test/functional/rpc_fundrawtransaction.py
+++ b/test/functional/rpc_fundrawtransaction.py
@@ -223,8 +223,8 @@ class RawTransactionsTest(BitcoinTestFramework):
         assert_raises_rpc_error(-1, "JSON value is not a string as expected", self.nodes[2].fundrawtransaction, rawtx, {'change_type': None})
         assert_raises_rpc_error(-5, "Unknown change type", self.nodes[2].fundrawtransaction, rawtx, {'change_type': ''})
         rawtx = self.nodes[2].fundrawtransaction(rawtx, {'change_type': 'bech32'})
-        tx  = self.nodes[2].decoderawtransaction(rawtx['hex'])
-        assert_equal('witness_v0_keyhash', tx['vout'][rawtx['changepos']]['scriptPubKey']['type'])
+        dec_tx = self.nodes[2].decoderawtransaction(rawtx['hex'])
+        assert_equal('witness_v0_keyhash', dec_tx['vout'][rawtx['changepos']]['scriptPubKey']['type'])
 
         #########################################################################
         # test a fundrawtransaction with a VIN smaller than the required amount #
@@ -676,7 +676,7 @@ class RawTransactionsTest(BitcoinTestFramework):
                   self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2*min_relay_tx_fee}),
                   self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2*min_relay_tx_fee, "subtractFeeFromOutputs": [0]})]
 
-        dec_tx = [self.nodes[3].decoderawtransaction(tx['hex']) for tx in result]
+        dec_tx = [self.nodes[3].decoderawtransaction(tx_['hex']) for tx_ in result]
         output = [d['vout'][1 - r['changepos']]['value'] for d, r in zip(dec_tx, result)]
         change = [d['vout'][r['changepos']]['value'] for d, r in zip(dec_tx, result)]