diff --git a/servers/puppet/modules/zulip/files/supervisor/conf.d/humbug.conf b/servers/puppet/modules/zulip/files/supervisor/conf.d/humbug.conf
index 55a1ce5bfa..9b35d53bf1 100644
--- a/servers/puppet/modules/zulip/files/supervisor/conf.d/humbug.conf
+++ b/servers/puppet/modules/zulip/files/supervisor/conf.d/humbug.conf
@@ -66,6 +66,18 @@ redirect_stderr=true           ; redirect proc stderr to stdout (default false)
 stdout_logfile=/var/log/humbug/events-user-activity.log         ; stdout log path, NONE for none; default AUTO
 directory=/home/humbug/humbug-deployments/current/
 
+[program:humbug-events-user-activity-interval]
+command=python /home/humbug/humbug-deployments/current/manage.py process_queue user_activity_interval
+priority=300                   ; the relative start priority (default 999)
+autostart=true                 ; start at supervisord start (default: true)
+autorestart=true               ; whether/when to restart (default: unexpected)
+stopsignal=TERM                 ; signal used to kill process (default TERM)
+stopwaitsecs=30                ; max num secs to wait b4 SIGKILL (default 10)
+user=humbug                    ; setuid to this UNIX account to run the program
+redirect_stderr=true           ; redirect proc stderr to stdout (default false)
+stdout_logfile=/var/log/humbug/events-user-activity-interval.log         ; stdout log path, NONE for none; default AUTO
+directory=/home/humbug/humbug-deployments/current/
+
 [program:humbug-events-user-presence]
 command=python /home/humbug/humbug-deployments/current/manage.py process_queue user_presence
 priority=300                   ; the relative start priority (default 999)
@@ -119,7 +131,7 @@ directory=/home/humbug/humbug-deployments/current/
 ; process groups.
 
 [group:humbug-workers]
-programs=humbug-events-user-activity,humbug-events-signups,humbug-events-confirmation-emails,humbug-events-missedmessage_reminders  ; each refers to 'x' in [program:x] definitions
+programs=humbug-events-user-activity,humbug-events-user-activity-interval,humbug-events-user-presence,humbug-events-signups,humbug-events-confirmation-emails,humbug-events-missedmessage_reminders  ; 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