diff --git a/config/filter.d/postfix.conf b/config/filter.d/postfix.conf
index b88faf7b..ab9d47c5 100644
--- a/config/filter.d/postfix.conf
+++ b/config/filter.d/postfix.conf
@@ -76,6 +76,6 @@ ignoreregex =
 
 [Init]
 
-journalmatch = _SYSTEMD_UNIT=postfix.service
+journalmatch = _SYSTEMD_UNIT=postfix@-.service
 
 # Author: Cyril Jaquier