diff --git a/dovecot/sieve/report-ham.sieve b/dovecot/sieve/report-ham.sieve
index b160f36a..89962067 100644
--- a/dovecot/sieve/report-ham.sieve
+++ b/dovecot/sieve/report-ham.sieve
@@ -1,3 +1,3 @@
 require "vnd.dovecot.execute";
 
-execute :pipe mailtrain ham;
+execute :pipe "mailtrain" "ham";