diff --git a/Shorewall-core/lib.cli b/Shorewall-core/lib.cli
index 8e2c4c03f..c51c28779 100644
--- a/Shorewall-core/lib.cli
+++ b/Shorewall-core/lib.cli
@@ -1632,7 +1632,7 @@ add_command() {
 	fi
 
 	if ! qt $IPSET -L $ipset -n; then
-	    fatal_error "Zone $zone, interface $interface is does not have a dynamic host list"
+	    fatal_error "Zone $zone, interface $interface does not have a dynamic host list"
 	fi
 
 	host=${host#*:}