diff --git a/test/functional/fundrawtransaction.py b/test/functional/fundrawtransaction.py
index 1dc00f2ba1..fcae56f7dd 100755
--- a/test/functional/fundrawtransaction.py
+++ b/test/functional/fundrawtransaction.py
@@ -472,7 +472,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         rawTx = self.nodes[1].createrawtransaction(inputs, outputs)
         # fund a transaction that requires a new key for the change output
         # creating the key must be impossible because the wallet is locked
-        assert_raises_jsonrpc(-4, "Insufficient funds", self.nodes[1].fundrawtransaction, rawtx)
+        assert_raises_jsonrpc(-4, "Keypool ran out, please call keypoolrefill first", self.nodes[1].fundrawtransaction, rawTx)
 
         #refill the keypool
         self.nodes[1].walletpassphrase("test", 100)