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-rw-r--r--compiler/GHC/Tc/TyCl/Utils.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Tc/TyCl/Utils.hs b/compiler/GHC/Tc/TyCl/Utils.hs
index a1d6c93333..9dca3de9a0 100644
--- a/compiler/GHC/Tc/TyCl/Utils.hs
+++ b/compiler/GHC/Tc/TyCl/Utils.hs
@@ -137,7 +137,7 @@ synonymTyConsOfType ty
go_co (GRefl _ ty mco) = go ty `plusNameEnv` go_mco mco
go_co (TyConAppCo _ tc cs) = go_tc tc `plusNameEnv` go_co_s cs
go_co (AppCo co co') = go_co co `plusNameEnv` go_co co'
- go_co (ForAllCoX _ _ _ co co') = go_co co `plusNameEnv` go_co co'
+ go_co (ForAllCo _ _ _ co co') = go_co co `plusNameEnv` go_co co'
go_co (FunCo { fco_mult = m, fco_arg = a, fco_res = r })
= go_co m `plusNameEnv` go_co a `plusNameEnv` go_co r
go_co (CoVarCo _) = emptyNameEnv