diff --git a/tests/test_rpc.py b/tests/test_rpc.py
index a2dbc614..3bb82c3a 100644
--- a/tests/test_rpc.py
+++ b/tests/test_rpc.py
@@ -398,11 +398,15 @@ def test_create_spend(lianad, bitcoind):
     res_spend = lianad.rpc.createspend(destinations, outpoints, 1)
     res_reco = lianad.rpc.createrecovery(bitcoind.rpc.getnewaddress(), 2)
 
-    # The two PSBTs don't share any BIP32 derivation paths in their input.
+    # The two PSBTs don't share any BIP32 derivation paths in their inputs.
     res_spend_psbt = PSBT.from_base64(res_spend["psbt"])
+    res_spend_keys = set()
+    for i in res_spend_psbt.i:
+        res_spend_keys = res_spend_keys | set(i.map[PSBT_IN_BIP32_DERIVATION])
     res_reco_psbt = PSBT.from_base64(res_reco["psbt"])
-    res_spend_keys = set(res_spend_psbt.i[0].map[PSBT_IN_BIP32_DERIVATION])
-    res_reco_keys = set(res_reco_psbt.i[0].map[PSBT_IN_BIP32_DERIVATION])
+    res_reco_keys = set()
+    for i in res_reco_psbt.i:
+        res_reco_keys = res_reco_keys | set(i.map[PSBT_IN_BIP32_DERIVATION])
     assert res_spend_keys.intersection(res_reco_keys) == set()