diff --git a/test/knot-data/knot.conf b/test/knot-data/knot.conf
index 69c2082e48..22800f6cea 100644
--- a/test/knot-data/knot.conf
+++ b/test/knot-data/knot.conf
@@ -59,7 +59,6 @@ policy:
       ksk-lifetime: 365d
       ksk-submission: parent_zone_sbm
       nsec3: on
-      nsec3-iterations: 10
       propagation-delay: 1s
       signing-threads: 4
       zone-max-ttl: 1s