diff --git a/tests/sys/netpfil/pf/fragmentation_compat.sh b/tests/sys/netpfil/pf/fragmentation_compat.sh
--- a/tests/sys/netpfil/pf/fragmentation_compat.sh
+++ b/tests/sys/netpfil/pf/fragmentation_compat.sh
@@ -299,6 +299,7 @@
 	# Sanity check
 	atf_check -s exit:0 -o ignore ping -c 1 192.0.2.2
 
+	jexec alcatraz pfctl -e
 	pft_set_rules alcatraz \
 		"scrub in" \
 		"pass out" \