diff --git a/plugins/trezor/plugin.py b/plugins/trezor/plugin.py
index 4c4dc571..c9e30d3f 100644
--- a/plugins/trezor/plugin.py
+++ b/plugins/trezor/plugin.py
@@ -56,7 +56,7 @@ class TrezorCompatibleKeyStore(Hardware_KeyStore):
             pubkeys, x_pubkeys = tx.get_sorted_pubkeys(txin)
             tx_hash = txin['prevout_hash']
             prev_tx[tx_hash] = txin['prev_tx'] 
-            for x_pubkey in txin['x_pubkeys']:
+            for x_pubkey in x_pubkeys:
                 if not is_xpubkey(x_pubkey):
                     continue
                 xpub, s = parse_xpubkey(x_pubkey)