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-rw-r--r--compiler/GHC/Tc/Types.hs6
1 files changed, 3 insertions, 3 deletions
diff --git a/compiler/GHC/Tc/Types.hs b/compiler/GHC/Tc/Types.hs
index 31e5f8ceed..dcf720e4a2 100644
--- a/compiler/GHC/Tc/Types.hs
+++ b/compiler/GHC/Tc/Types.hs
@@ -1412,9 +1412,9 @@ plusImportAvails
imp_trust_pkgs = tpkgs1 `S.union` tpkgs2,
imp_trust_own_pkg = tself1 || tself2,
imp_boot_mods = srs1 `plusModDeps` srcs2,
- imp_sig_mods = sig_mods1 `unionLists` sig_mods2,
- imp_orphs = orphs1 `unionLists` orphs2,
- imp_finsts = finsts1 `unionLists` finsts2 }
+ imp_sig_mods = unionListsOrd sig_mods1 sig_mods2,
+ imp_orphs = unionListsOrd orphs1 orphs2,
+ imp_finsts = unionListsOrd finsts1 finsts2 }
{-
************************************************************************