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-rw-r--r--compiler/GHC/HsToCore/Docs.hs3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/GHC/HsToCore/Docs.hs b/compiler/GHC/HsToCore/Docs.hs
index 2a82c986e3..e71876b74b 100644
--- a/compiler/GHC/HsToCore/Docs.hs
+++ b/compiler/GHC/HsToCore/Docs.hs
@@ -24,6 +24,7 @@ import GHC.Types.Name
import GHC.Types.Name.Set
import GHC.Types.SrcLoc
import GHC.Tc.Types
+import GHC.Utils.Misc (unBox)
import Control.Applicative
import Data.Bifunctor (first)
@@ -188,7 +189,7 @@ subordinates instMap decl = case decl of
, maybeToList $ fmap unLoc $ con_doc c
, conArgDocs c)
| c <- cons, cname <- getConNames c ]
- fields = [ (extFieldOcc n, maybeToList $ fmap unLoc doc, M.empty)
+ fields = [ (unBox (extFieldOcc n), maybeToList $ fmap unLoc doc, M.empty)
| RecCon flds <- map getConArgs cons
, (L _ (ConDeclField _ ns _ doc)) <- (unLoc flds)
, (L _ n) <- ns ]