diff --git a/roles/debian/postfix/defaults/main.yml b/roles/debian/postfix/defaults/main.yml
index fb00787d3..2da66c0c1 100644
--- a/roles/debian/postfix/defaults/main.yml
+++ b/roles/debian/postfix/defaults/main.yml
@@ -12,7 +12,7 @@ postfix:
   protocols: all
   relayhost: ""
   transport_maps: # see Postfix manual examples - https://www.postfix.org/transport.5.html
-    - "* discard :"
+    - "* discard"
   use_dkim: false
   # AWS SES config - to authenticate with an IAM user see https://docs.aws.amazon.com/ses/latest/dg/smtp-credentials.html
   use_ses: false