diff --git a/tests/sys/netpfil/pf/pfsync.sh b/tests/sys/netpfil/pf/pfsync.sh
index 8028ba9790ba..75788eed4bbe 100644
--- a/tests/sys/netpfil/pf/pfsync.sh
+++ b/tests/sys/netpfil/pf/pfsync.sh
@@ -125,10 +125,6 @@ defer_body()
 {
 	pfsynct_init
 
-	if [ "$(atf_config_get ci false)" = "true" ]; then
-		atf_skip "Skip know failing test (likely related to https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=260460)"
-	fi
-
 	epair_sync=$(vnet_mkepair)
 	epair_in=$(vnet_mkepair)
 	epair_out=$(vnet_mkepair)
@@ -141,6 +137,9 @@ defer_body()
 	jexec alcatraz arp -s 203.0.113.2 00:01:02:03:04:05
 	jexec alcatraz sysctl net.inet.ip.forwarding=1
 
+	# Set a long defer delay
+	jexec alcatraz sysctl net.pfsync.defer_delay=2500
+
 	jexec alcatraz ifconfig pfsync0 \
 		syncdev ${epair_sync}a \
 		maxupd 1 \
diff --git a/tests/sys/netpfil/pf/pfsync_defer.py b/tests/sys/netpfil/pf/pfsync_defer.py
index c1d90d4483c4..0a258c8f27b3 100644
--- a/tests/sys/netpfil/pf/pfsync_defer.py
+++ b/tests/sys/netpfil/pf/pfsync_defer.py
@@ -119,13 +119,12 @@ def main():
     if not got_ping:
         sys.exit(2)
 
-    if got_pfsync > got_ping:
+    # Deferred packets are delayed around 2.5s (unless the pfsync peer, which
+    # we don't have here, acks their state update earlier)
+    # Expect at least a second of delay, to be somewhat robust against
+    # scheduling-induced jitter.
+    if (sent_ping + 1) > got_ping:
         sys.exit(3)
 
-    # Deferred packets are delayed up to 20ms (unless the pfsync peer, which we
-    # don't have here, acks their state update earlier)
-    if (sent_ping + 0.020) > got_ping:
-        sys.exit(4)
-
 if __name__ == '__main__':
     main()