diff --git a/CHANGELOG.md b/CHANGELOG.md
index 67288ab50..a5f11b073 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - #896, Boolean env var interpolation in config file - @begriffs
 - #885, OpenAPI repetition reduced by using more definitions- @ldesgoui
 - #924, Improve relations initialization time - @9too
+- #927, Treat blank pre-request as missing - @begriffs
 
 ## [0.4.2.0] - 2017-06-11
 
diff --git a/src/PostgREST/Config.hs b/src/PostgREST/Config.hs
index e73a7b663..9c7bd5df1 100644
--- a/src/PostgREST/Config.hs
+++ b/src/PostgREST/Config.hs
@@ -114,7 +114,7 @@ readOptions = do
           <*> (fromMaybe False . join . fmap coerceBool <$> C.key "secret-is-base64")
           <*> (fromMaybe 10 . join . fmap coerceInt <$> C.key "db-pool")
           <*> (join . fmap coerceInt <$> C.key "max-rows")
-          <*> C.key "pre-request"
+          <*> (mfilter (/= "") <$> C.key "pre-request")
           <*> pure False
 
   case mAppConf of