diff --git a/compiler/GHC/Builtin/Types.hs b/compiler/GHC/Builtin/Types.hs
index 8fbc6e61f65f161c970fd2d33110f39e3d08e64e..a06febf73ad57a381ddfc8a6cd4ecc74dc56f4f8 100644
--- a/compiler/GHC/Builtin/Types.hs
+++ b/compiler/GHC/Builtin/Types.hs
@@ -64,7 +64,7 @@ module GHC.Builtin.Types (
         nilDataCon, nilDataConName, nilDataConKey,
         consDataCon_RDR, consDataCon, consDataConName,
         promotedNilDataCon, promotedConsDataCon,
-        mkListTy, mkPromotedListTy,
+        mkListTy, mkPromotedListTy, extractPromotedList,
 
         -- * Maybe
         maybeTyCon, maybeTyConName,