2 files changed, 5 insertions, 3 deletions
diff --git a/haddock-api/src/Haddock/Interface/Create.hs b/haddock-api/src/Haddock/Interface/Create.hs
index 8f3b9f9a..6a9c8cd4 100644
--- a/haddock-api/src/Haddock/Interface/Create.hs
+++ b/haddock-api/src/Haddock/Interface/Create.hs
@@ -557,7 +557,7 @@ mkExportItems
 
                   L loc (TyClD cl@ClassDecl{}) -> do
                     mdef <- liftGhcToErrMsgGhc $ minimalDef t
-                    let sig = maybeToList $ fmap (noLoc . MinimalSig mempty . fmap noLoc) mdef
+                    let sig = maybeToList $ fmap (noLoc . MinimalSig mempty . noLoc . fmap noLoc) mdef
                     return [ mkExportDecl t
                       (L loc $ TyClD cl { tcdSigs = sig ++ tcdSigs cl }) docs_ ]
 
@@ -749,7 +749,7 @@ fullModuleContents dflags warnings gre (docMap, argMap, subMap, declMap, instMap
         return $ Just (ExportDecl decl doc subs [] (fixities name subs) (l `elem` splices))
     mkExportItem (L l (TyClD cl@ClassDecl{ tcdLName = L _ name, tcdSigs = sigs })) = do
       mdef <- liftGhcToErrMsgGhc $ minimalDef name
-      let sig = maybeToList $ fmap (noLoc . MinimalSig mempty . fmap noLoc) mdef
+      let sig = maybeToList $ fmap (noLoc . MinimalSig mempty . noLoc . fmap noLoc) mdef
       expDecl (L l (TyClD cl { tcdSigs = sig ++ sigs })) l name
     mkExportItem decl@(L l d)
       | name:_ <- getMainDeclBinder d = expDecl decl l name
diff --git a/haddock-api/src/Haddock/Interface/Rename.hs b/haddock-api/src/Haddock/Interface/Rename.hs
index 033246a8..131082cd 100644
--- a/haddock-api/src/Haddock/Interface/Rename.hs
+++ b/haddock-api/src/Haddock/Interface/Rename.hs
@@ -437,7 +437,9 @@ renameSig sig = case sig of
   FixSig (FixitySig lnames fixity) -> do
     lnames' <- mapM renameL lnames
     return $ FixSig (FixitySig lnames' fixity)
-  MinimalSig src s -> MinimalSig src <$> traverse renameL s
+  MinimalSig src (L l s) -> do
+    s' <- traverse renameL s
+    return $ MinimalSig src (L l s')
   -- we have filtered out all other kinds of signatures in Interface.Create
   _ -> error "expected TypeSig"