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-rw-r--r--compiler/GHC/HsToCore/Arrows.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/HsToCore/Arrows.hs b/compiler/GHC/HsToCore/Arrows.hs
index 4a31b9fc8d..3054eceecf 100644
--- a/compiler/GHC/HsToCore/Arrows.hs
+++ b/compiler/GHC/HsToCore/Arrows.hs
@@ -602,7 +602,7 @@ dsCmd ids local_vars stack_ty res_ty
--
-- ---> premap (\ ((xs),stk) -> let binds in ((ys),stk)) c
-dsCmd ids local_vars stack_ty res_ty (HsCmdLet _ lbinds@binds body) env_ids = do
+dsCmd ids local_vars stack_ty res_ty (HsCmdLet _ _ lbinds@binds _ body) env_ids = do
let
defined_vars = mkVarSet (collectLocalBinders CollWithDictBinders binds)
local_vars' = defined_vars `unionVarSet` local_vars