diff --git a/package-postfix_filter/defaults/main.yml b/package-postfix_filter/defaults/main.yml
index 7e116ab..ca0c3a3 100644
--- a/package-postfix_filter/defaults/main.yml
+++ b/package-postfix_filter/defaults/main.yml
@@ -31,5 +31,5 @@ virtual_maps:
 notify_admin: "joshua@boniface.me" # Administrative address to notify
 notify_method: "smtp:{{ blsecluster_smtphost }}:25"
 custom_sender_scores:
-  - [qr'^(offers)@'i => 1.0]
-  - [qr'^.*@pizzanova.com'i => 1.0]
+  - "[qr'^(offers)@'i => 1.0]"
+  - "[qr'^.*@pizzanova.com'i => 1.0]"