3 files changed, 6 insertions, 0 deletions
diff --git a/compiler/stranal/DmdAnal.hs b/compiler/stranal/DmdAnal.hs
index 49912413e4..44adc81633 100644
--- a/compiler/stranal/DmdAnal.hs
+++ b/compiler/stranal/DmdAnal.hs
@@ -13,6 +13,8 @@ module DmdAnal ( dmdAnalProgram ) where
 
 #include "HsVersions.h"
 
+import GhcPrelude
+
 import DynFlags
 import WwLib            ( findTypeShape, deepSplitProductType_maybe )
 import Demand   -- All of it
diff --git a/compiler/stranal/WorkWrap.hs b/compiler/stranal/WorkWrap.hs
index 630ec11442..252f18b983 100644
--- a/compiler/stranal/WorkWrap.hs
+++ b/compiler/stranal/WorkWrap.hs
@@ -7,6 +7,8 @@
 {-# LANGUAGE CPP #-}
 module WorkWrap ( wwTopBinds ) where
 
+import GhcPrelude
+
 import CoreSyn
 import CoreUnfold       ( certainlyWillInline, mkWwInlineRule, mkWorkerUnfolding )
 import CoreUtils        ( exprType, exprIsHNF )
diff --git a/compiler/stranal/WwLib.hs b/compiler/stranal/WwLib.hs
index f83aafe7b0..474743a955 100644
--- a/compiler/stranal/WwLib.hs
+++ b/compiler/stranal/WwLib.hs
@@ -13,6 +13,8 @@ module WwLib ( mkWwBodies, mkWWstr, mkWorkerArgs
 
 #include "HsVersions.h"
 
+import GhcPrelude
+
 import CoreSyn
 import CoreUtils        ( exprType, mkCast )
 import Id