diff --git a/core/postfix/conf/main.cf b/core/postfix/conf/main.cf
index 72828ea6..8f35f609 100644
--- a/core/postfix/conf/main.cf
+++ b/core/postfix/conf/main.cf
@@ -126,3 +126,5 @@ milter_default_action = tempfail
 ###############
 # Extra Settings
 ###############
+{# Ensure that the rendered file ends with newline in order to make `postconf` work correctly #}
+{{- "\n" }}