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-rw-r--r--compiler/GHC/Tc/Utils/Backpack.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Tc/Utils/Backpack.hs b/compiler/GHC/Tc/Utils/Backpack.hs
index 87890fa94d..1f6090c7b7 100644
--- a/compiler/GHC/Tc/Utils/Backpack.hs
+++ b/compiler/GHC/Tc/Utils/Backpack.hs
@@ -231,7 +231,7 @@ check_inst sig_inst = do
-- | Return this list of requirement interfaces that need to be merged
-- to form @mod_name@, or @[]@ if this is not a requirement.
-requirementMerges :: PackageState -> ModuleName -> [InstantiatedModule]
+requirementMerges :: UnitState -> ModuleName -> [InstantiatedModule]
requirementMerges pkgstate mod_name =
fmap fixupModule $ fromMaybe [] (Map.lookup mod_name (requirementContext pkgstate))
where