diff --git a/plugins/postfix/postfix_stats b/plugins/postfix/postfix_stats
index 7f9eb007..b5509f4e 100755
--- a/plugins/postfix/postfix_stats
+++ b/plugins/postfix/postfix_stats
@@ -66,7 +66,7 @@ GPLv2
 #set -xv
 MAIL_LOG="${logfiles:-/var/log/mail.log /var/log/mail.log.1}"
 
-GREP_HOSTNAME=$(echo $0 | sed -r 's/^.+postfix_stats_?//')
+GREP_HOSTNAME=$(basename "$0" | sed -r 's/postfix_stats_?//')
 
 # shellcheck disable=SC2154
 PFLOGSUMM="${pflogsum}"