diff --git a/Shorewall-core/lib.cli b/Shorewall-core/lib.cli
index c37370423..8cf19edab 100644
--- a/Shorewall-core/lib.cli
+++ b/Shorewall-core/lib.cli
@@ -1896,6 +1896,8 @@ add_command() {
 		ipset=6_${zone}_${interface};
 	    fi
 
+	    ipset=$(echo $ipset | sed 's/./_/g');
+
 	    if ! qt $IPSET -L $ipset; then
 		fatal_error "Zone $zone, interface $interface does not have a dynamic host list"
 	    fi
@@ -1984,6 +1986,8 @@ delete_command() {
 		ipset=6_${zone}_${interface};
 	    fi
 
+	    ipset=$(echo $ipset | sed 's/./_/g');
+
 	    if ! qt $IPSET -L $ipset -n; then
 		fatal_error "Zone $zone, interface $interface does not have a dynamic host list"
 	    fi