diff --git a/test/functional/rpc_rawtransaction.py b/test/functional/rpc_rawtransaction.py
index 5e08776f8c..c93ee100fc 100755
--- a/test/functional/rpc_rawtransaction.py
+++ b/test/functional/rpc_rawtransaction.py
@@ -250,7 +250,7 @@ def getrawtransaction_verbosity_tests(self):
         # check that verbosity 2 for a mempool tx will fallback to verbosity 1
         # Do this with a pruned chain, as a regression test for https://github.com/bitcoin/bitcoin/pull/29003
         self.generate(self.nodes[2], 400)
-        assert_greater_than(self.nodes[2].pruneblockchain(250), 0)
+        assert_greater_than(self.nodes[2].pruneblockchain(2500), 0)
         mempool_tx = self.wallet.send_self_transfer(from_node=self.nodes[2], fee_rate=Decimal("0.004"))['txid']
         gottx = self.nodes[2].getrawtransaction(txid=mempool_tx, verbosity=2)
         assert 'fee' not in gottx