diff --git a/test/functional/rpc_gettxspendingprevout.py b/test/functional/rpc_gettxspendingprevout.py
index 04bc4237d05..972056e627b 100755
--- a/test/functional/rpc_gettxspendingprevout.py
+++ b/test/functional/rpc_gettxspendingprevout.py
@@ -76,6 +76,9 @@ class GetTxSpendingPrevoutTest(BitcoinTestFramework):
         txs = [txA, txB, txC, txD, txE, txF, txG, txH]
         txidA, txidB, txidC, txidD, txidE, txidF, txidG, txidH = [tx["txid"] for tx in txs]
 
+        self.sync_mempools()
+        self.wait_until(lambda: node0.getindexinfo()["txospenderindex"]["synced"])
+        self.wait_until(lambda: node1.getindexinfo()["txospenderindex"]["synced"])
         mempool = node0.getrawmempool()
         assert_equal(len(mempool), 8)
         for tx in txs: