diff --git a/.ghci b/.ghci
index 29a3cb319..0d49fe5cb 100644
--- a/.ghci
+++ b/.ghci
@@ -1 +1,3 @@
 :set -XNoImplicitPrelude
+:set -XOverloadedStrings
+import Prelude ()
diff --git a/protolude.cabal b/protolude.cabal
index d0eb8df5d..558b004ac 100644
--- a/protolude.cabal
+++ b/protolude.cabal
@@ -55,6 +55,7 @@ library
 
   ghc-options:
     -Wall
+    -fwarn-implicit-prelude
 
   build-depends:       
     base             >= 4.6  && <4.10,
diff --git a/src/Protolude.hs b/src/Protolude.hs
index 0d821a3e8..7c7a2d5e0 100644
--- a/src/Protolude.hs
+++ b/src/Protolude.hs
@@ -244,7 +244,7 @@ import Data.Function as X (
   )
 
 -- Genericss
-import GHC.Generics (
+import GHC.Generics as X (
     Generic(..)
   , Rep
   , K1(..)
@@ -300,10 +300,7 @@ import Text.Printf as X (
 import System.Exit as X
 --import System.Info as X
 import System.Environment as X (getArgs)
-import System.IO as X (
-    Handle
-  , hClose
-  )
+import System.IO as X (Handle)
 
 -- ST
 import Control.Monad.ST as X