diff --git a/scripts/base/frameworks/netcontrol/plugins/acld.bro b/scripts/base/frameworks/netcontrol/plugins/acld.bro
index 43375cb7ae..48965629c5 100644
--- a/scripts/base/frameworks/netcontrol/plugins/acld.bro
+++ b/scripts/base/frameworks/netcontrol/plugins/acld.bro
@@ -55,7 +55,7 @@ const acld_add_to_remove: table[string] of string = {
 	["dropudpdsthostport"] ="restoreudpdsthostport",
 	["permittcpdsthostport"] ="unpermittcpdsthostport",
 	["permitudpdsthostport"] ="unpermitudpdsthostport",
-	["nullzero "] ="nonullzero"
+	["nullzero"] ="nonullzero"
 };
 
 event NetControl::acld_rule_added(id: count, r: Rule, msg: string)