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-rw-r--r--compiler/GHC/Runtime/Debugger.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Runtime/Debugger.hs b/compiler/GHC/Runtime/Debugger.hs
index 04709b38cf..4f58a0a05b 100644
--- a/compiler/GHC/Runtime/Debugger.hs
+++ b/compiler/GHC/Runtime/Debugger.hs
@@ -67,7 +67,7 @@ pprintClosureCommand bindThings force str = do
-- Obtain the terms and the recovered type information
let ids = [id | AnId id <- pprintables]
- (subst, terms) <- mapAccumLM go emptyTCvSubst ids
+ (subst, terms) <- mapAccumLM' go emptyTCvSubst ids
-- Apply the substitutions obtained after recovering the types
modifySession $ \hsc_env ->