diff --git a/src/wg-quick/darwin.bash b/src/wg-quick/darwin.bash
index 8387d85..566cfea 100755
--- a/src/wg-quick/darwin.bash
+++ b/src/wg-quick/darwin.bash
@@ -107,6 +107,7 @@ add_if() {
 }
 
 del_routes() {
+	[[ -n $REAL_INTERFACE ]] || return 0
 	local todelete=( ) destination gateway netif
 	while read -r destination _ _ _ _ netif _; do
 		[[ $netif == "$REAL_INTERFACE" ]] && todelete+=( "$destination" )