diff --git a/Shorewall/firewall b/Shorewall/firewall
index 1c7e1ac39..545459405 100755
--- a/Shorewall/firewall
+++ b/Shorewall/firewall
@@ -3589,7 +3589,7 @@ add_to_zone() # $1 = <interface>[:<hosts>] $2 = zone
 		    iface=${h%:*}
 		    hosts=${h#*:}
 
-		    base=`chain_base $face`
+		    base=`chain_base $iface`
 
 		    eval rulenum=\$${base}_rulenum