diff --git a/test/functional/p2p_compactblocks.py b/test/functional/p2p_compactblocks.py
index 0d44943d6f3..724a5874373 100755
--- a/test/functional/p2p_compactblocks.py
+++ b/test/functional/p2p_compactblocks.py
@@ -744,6 +744,13 @@ class CompactBlocksTest(BitcoinTestFramework):
         assert_not_equal(node.getbestblockhash(), block.hash_hex)
         test_node.sync_with_ping()
 
+        # The failure above was cached. Submitting the compact block again will returned a cached
+        # consensus error (the code path is different) and still not get us disconnected (nor
+        # advance the tip).
+        test_node.send_and_ping(msg)
+        assert_not_equal(node.getbestblockhash(), block.hash_hex)
+        test_node.sync_with_ping()
+
     # Helper for enabling cb announcements
     # Send the sendcmpct request and sync headers
     def request_cb_announcements(self, peer):