diff --git a/servers/puppet/modules/humbug/files/postgresql/postgresql.conf b/servers/puppet/modules/humbug/files/postgresql/postgresql.conf
index 18fa0e1c7b..53e70cea72 100644
--- a/servers/puppet/modules/humbug/files/postgresql/postgresql.conf
+++ b/servers/puppet/modules/humbug/files/postgresql/postgresql.conf
@@ -578,6 +578,7 @@ log_min_duration_statement = 500
 log_line_prefix = '%m [%c]: [%l-1] '
 log_lock_waits = on
 log_temp_files = 0
+log_autovacuum_min_duration = 100
 
 # Master replication settings (ignored on standby)
 wal_level = hot_standby