diff --git a/sbin/pfctl/tests/files/pf1006.in b/sbin/pfctl/tests/files/pf1006.in
new file mode 100644
--- /dev/null
+++ b/sbin/pfctl/tests/files/pf1006.in
@@ -0,0 +1,2 @@
+altq on igb0 fairq bandwidth 1Gb queue { qLink }
+queue qLink fairq(default)
diff --git a/sbin/pfctl/tests/files/pf1006.ok b/sbin/pfctl/tests/files/pf1006.ok
new file mode 100644
--- /dev/null
+++ b/sbin/pfctl/tests/files/pf1006.ok
@@ -0,0 +1,2 @@
+altq on igb0 fairq bandwidth 1Gb tbrsize 36000 queue { qLink }
+queue qLink fairq( default ) 
diff --git a/sbin/pfctl/tests/pfctl_test_list.inc b/sbin/pfctl/tests/pfctl_test_list.inc
--- a/sbin/pfctl/tests/pfctl_test_list.inc
+++ b/sbin/pfctl/tests/pfctl_test_list.inc
@@ -116,3 +116,4 @@
 PFCTL_TEST(1003, "ALTQ")
 PFCTL_TEST(1004, "ALTQ with Codel")
 PFCTL_TEST(1005, "PR 231323")
+PFCTL_TEST(1006, "pfctl crashes with certain fairq configurations")