diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 Changelog for tmp-postgres
 
+1.20.0.1
+  #164 Documentation fixes.
+
 1.20.0.0
   #144 Make a CacheResources type
   #162 Make a Snapshot alias
diff --git a/src/Database/Postgres/Temp/Internal.hs b/src/Database/Postgres/Temp/Internal.hs
--- a/src/Database/Postgres/Temp/Internal.hs
+++ b/src/Database/Postgres/Temp/Internal.hs
@@ -162,7 +162,7 @@
 Or using the provided lenses and your favorite lens library:
 
  @
-  custom = defaultConfig & 'planL' . 'postgresConfigFile' <>~
+  custom = defaultConfig & 'planL' . 'postgresConfigFileL' <>~
     [ "wal_level = replica"
     , "archive_mode = on"
     , "max_wal_senders = 2"
@@ -208,7 +208,7 @@
 or with lenses:
 
 @
-'defaultPostgresConf' extra = 'defaultConfig' & 'planL' . 'postgresConfigFile' <>~ extra
+'defaultPostgresConf' extra = 'defaultConfig' & 'planL' . 'postgresConfigFileL' <>~ extra
 @
 
 @since 1.12.0.0
diff --git a/tmp-postgres.cabal b/tmp-postgres.cabal
--- a/tmp-postgres.cabal
+++ b/tmp-postgres.cabal
@@ -1,5 +1,5 @@
 name:                tmp-postgres
-version:             1.20.0.0
+version:             1.20.0.1
 synopsis: Start and stop a temporary postgres
 description: Start and stop a temporary postgres. See README.md
 homepage:            https://github.com/jfischoff/tmp-postgres#readme