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-rw-r--r--compiler/GHC/Core/Coercion/Opt.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Core/Coercion/Opt.hs b/compiler/GHC/Core/Coercion/Opt.hs
index 72c96c962a..62b83bd8c1 100644
--- a/compiler/GHC/Core/Coercion/Opt.hs
+++ b/compiler/GHC/Core/Coercion/Opt.hs
@@ -594,7 +594,7 @@ opt_univ env sym prov role oty1 oty2
#endif
ProofIrrelProv kco -> ProofIrrelProv $ opt_co4_wrap env sym False Nominal kco
PluginProv _ -> prov
- CorePrepProv -> prov
+ CorePrepProv _ -> prov
-------------
opt_transList :: HasDebugCallStack => InScopeSet -> [NormalCo] -> [NormalCo] -> [NormalCo]