11 files changed, 21 insertions, 0 deletions
diff --git a/compiler/prelude/ForeignCall.hs b/compiler/prelude/ForeignCall.hs
index bd80a36ad4..c143b1ed1e 100644
--- a/compiler/prelude/ForeignCall.hs
+++ b/compiler/prelude/ForeignCall.hs
@@ -18,6 +18,8 @@ module ForeignCall (
         Header(..), CType(..),
     ) where
 
+import GhcPrelude
+
 import FastString
 import Binary
 import Outputable
diff --git a/compiler/prelude/KnownUniques.hs b/compiler/prelude/KnownUniques.hs
index 60fa0e2435..00085cad0b 100644
--- a/compiler/prelude/KnownUniques.hs
+++ b/compiler/prelude/KnownUniques.hs
@@ -26,6 +26,8 @@ module KnownUniques
 
 #include "HsVersions.h"
 
+import GhcPrelude
+
 import TysWiredIn
 import TyCon
 import DataCon
diff --git a/compiler/prelude/KnownUniques.hs-boot b/compiler/prelude/KnownUniques.hs-boot
index eeb478526d..b217c84aca 100644
--- a/compiler/prelude/KnownUniques.hs-boot
+++ b/compiler/prelude/KnownUniques.hs-boot
@@ -1,5 +1,6 @@
 module KnownUniques where
 
+import GhcPrelude
 import Unique
 import Name
 import BasicTypes
diff --git a/compiler/prelude/PrelInfo.hs b/compiler/prelude/PrelInfo.hs
index 47f41fbf73..8d1f140ca2 100644
--- a/compiler/prelude/PrelInfo.hs
+++ b/compiler/prelude/PrelInfo.hs
@@ -46,6 +46,8 @@ module PrelInfo (
 
 #include "HsVersions.h"
 
+import GhcPrelude
+
 import KnownUniques
 import Unique           ( isValidKnownKeyUnique )
 
diff --git a/compiler/prelude/PrelNames.hs b/compiler/prelude/PrelNames.hs
index b7cfb4f226..0159037606 100644
--- a/compiler/prelude/PrelNames.hs
+++ b/compiler/prelude/PrelNames.hs
@@ -128,6 +128,8 @@ module PrelNames (
 
 #include "HsVersions.h"
 
+import GhcPrelude
+
 import Module
 import OccName
 import RdrName
diff --git a/compiler/prelude/PrelRules.hs b/compiler/prelude/PrelRules.hs
index d2b8d875b2..fc211f426d 100644
--- a/compiler/prelude/PrelRules.hs
+++ b/compiler/prelude/PrelRules.hs
@@ -25,6 +25,8 @@ where
 #include "HsVersions.h"
 #include "../includes/MachDeps.h"
 
+import GhcPrelude
+
 import {-# SOURCE #-} MkId ( mkPrimOpId, magicDictId )
 
 import CoreSyn
diff --git a/compiler/prelude/PrimOp.hs b/compiler/prelude/PrimOp.hs
index 79bec86d00..4eb94e9fdb 100644
--- a/compiler/prelude/PrimOp.hs
+++ b/compiler/prelude/PrimOp.hs
@@ -27,6 +27,8 @@ module PrimOp (
 
 #include "HsVersions.h"
 
+import GhcPrelude
+
 import TysPrim
 import TysWiredIn
 
diff --git a/compiler/prelude/PrimOp.hs-boot b/compiler/prelude/PrimOp.hs-boot
index 6b92ef3d49..f10ef44972 100644
--- a/compiler/prelude/PrimOp.hs-boot
+++ b/compiler/prelude/PrimOp.hs-boot
@@ -1,3 +1,5 @@
 module PrimOp where
 
+import GhcPrelude ()
+
 data PrimOp
diff --git a/compiler/prelude/THNames.hs b/compiler/prelude/THNames.hs
index 4128ab375e..068f01feea 100644
--- a/compiler/prelude/THNames.hs
+++ b/compiler/prelude/THNames.hs
@@ -6,6 +6,8 @@
 
 module THNames where
 
+import GhcPrelude ()
+
 import PrelNames( mk_known_key_name )
 import Module( Module, mkModuleNameFS, mkModule, thUnitId )
 import Name( Name )
diff --git a/compiler/prelude/TysPrim.hs b/compiler/prelude/TysPrim.hs
index 0732b5636d..b4a5b6b541 100644
--- a/compiler/prelude/TysPrim.hs
+++ b/compiler/prelude/TysPrim.hs
@@ -80,6 +80,8 @@ module TysPrim(
 
 #include "HsVersions.h"
 
+import GhcPrelude
+
 import {-# SOURCE #-} TysWiredIn
   ( runtimeRepTy, unboxedTupleKind, liftedTypeKind
   , vecRepDataConTyCon, tupleRepDataConTyCon
diff --git a/compiler/prelude/TysWiredIn.hs b/compiler/prelude/TysWiredIn.hs
index 37e76f9b73..f4e055f376 100644
--- a/compiler/prelude/TysWiredIn.hs
+++ b/compiler/prelude/TysWiredIn.hs
@@ -128,6 +128,8 @@ module TysWiredIn (
 #include "HsVersions.h"
 #include "MachDeps.h"
 
+import GhcPrelude
+
 import {-# SOURCE #-} MkId( mkDataConWorkId, mkDictSelId )
 
 -- friends: