diff --git a/postgres-appliance/bootstrap/maybe_pg_upgrade.py b/postgres-appliance/bootstrap/maybe_pg_upgrade.py
index 73871bf0..86086e8e 100644
--- a/postgres-appliance/bootstrap/maybe_pg_upgrade.py
+++ b/postgres-appliance/bootstrap/maybe_pg_upgrade.py
@@ -11,7 +11,7 @@
 def tail_postgres_log(weekday):
     logdir = os.environ.get('PGLOG', '/home/postgres/pgdata/pgroot/pg_log')
     logfile = os.path.join(logdir, 'postgresql-{0}.csv'.format(weekday))
-    if os.getenv('LOG_SHIP_HOURLY'):
+    if os.getenv('LOG_SHIP_HOURLY') == 'true':
         logfile = os.path.join(logdir, 'postgresql-{0}-{1}.csv'.format(weekday, datetime.datetime.today().hour))
     return subprocess.check_output(['tail', '-n5', logfile]).decode('utf-8')
 
diff --git a/postgres-appliance/scripts/configure_spilo.py b/postgres-appliance/scripts/configure_spilo.py
index 5eec38be..c7ff4a28 100755
--- a/postgres-appliance/scripts/configure_spilo.py
+++ b/postgres-appliance/scripts/configure_spilo.py
@@ -590,7 +590,7 @@ def get_placeholders(provider):
     placeholders.setdefault('CLONE_TARGET_INCLUSIVE', True)
 
     placeholders.setdefault('LOG_GROUP_BY_DATE', False)
-    placeholders.setdefault('LOG_SHIP_HOURLY', False)
+    placeholders.setdefault('LOG_SHIP_HOURLY', 'false')
     placeholders.setdefault('LOG_SHIP_SCHEDULE', '1 0 * * *')
     placeholders.setdefault('LOG_S3_BUCKET', '')
     placeholders.setdefault('LOG_S3_ENDPOINT', '')
@@ -775,7 +775,7 @@ def write_log_environment(placeholders):
 
     log_schedule = os.getenv('LOG_SHIP_SCHEDULE')
     if '/' in log_schedule.split()[1]:
-        log_env['LOG_SHIP_HOURLY'] = True
+        log_env['LOG_SHIP_HOURLY'] = 'true'
 
     log_s3_key += placeholders['instance_data']['id']
     log_env['LOG_S3_KEY'] = log_s3_key