diff --git a/compose.mailman.yml b/compose.mailman.yml
index 3a9940b..1c9a2bb 100644
--- a/compose.mailman.yml
+++ b/compose.mailman.yml
@@ -17,4 +17,4 @@ volumes:
 configs:
   postfix_override:
     name: ${STACK_NAME}_postfix_overrides_${POSTFIX_OVERRIDE_VERSION}
-    file: postfix.cf.tmpl
+    file: postfix.cf
diff --git a/postfix.cf.tmpl b/postfix.cf
similarity index 100%
rename from postfix.cf.tmpl
rename to postfix.cf