diff --git a/Makefile b/Makefile
index 0a40e67..604172a 100644
--- a/Makefile
+++ b/Makefile
@@ -17,6 +17,9 @@ PORT ?=
 which-bin-uses-this-port:
 	fstat | grep ':$(PORT)'
 
+which-bin-uses-this-port-linux:
+	lsof -i ':$(PORT)'
+
 MAIL_DOMAIN ?= mail.karchnu.fr
 verify-mail-certificate:
 	echo | openssl s_client -starttls smtp -showcerts -connect $(MAIL_DOMAIN):587 -servername $(MAIL_DOMAIN) | openssl x509 -noout -dates