diff --git a/servers/puppet/modules/zulip/files/supervisor/conf.d/zulip.conf b/servers/puppet/modules/zulip/files/supervisor/conf.d/zulip.conf
index 50685bea4b..3bb13e5eca 100644
--- a/servers/puppet/modules/zulip/files/supervisor/conf.d/zulip.conf
+++ b/servers/puppet/modules/zulip/files/supervisor/conf.d/zulip.conf
@@ -143,7 +143,7 @@ directory=/home/zulip/deployments/current/
 ; process groups.
 
 [group:zulip-workers]
-programs=zulip-events-user-activity,zulip-events-user-activity-interval,zulip-events-user-presence,zulip-events-signups,zulip-events-confirmation-emails,zulip-events-missedmessage_reminders  ; each refers to 'x' in [program:x] definitions
+programs=zulip-events-user-activity,zulip-events-user-activity-interval,zulip-events-user-presence,zulip-events-signups,zulip-events-confirmation-emails,zulip-events-missedmessage_reminders,zulip-events-slowqueries  ; each refers to 'x' in [program:x] definitions
 
 ; The [include] section can just contain the "files" setting.  This
 ; setting can list multiple files (separated by whitespace or