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-rw-r--r--compiler/rename/RnExpr.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rename/RnExpr.hs b/compiler/rename/RnExpr.hs
index af58135bcd..32277b43ac 100644
--- a/compiler/rename/RnExpr.hs
+++ b/compiler/rename/RnExpr.hs
@@ -441,7 +441,7 @@ rnCmdTop = wrapLocFstM rnCmdTop'
rnCmdTop' (HsCmdTop cmd _ _ _)
= do { (cmd', fvCmd) <- rnLCmd cmd
; let cmd_names = [arrAName, composeAName, firstAName] ++
- nameSetElems (methodNamesCmd (unLoc cmd'))
+ nameSetElemsStable (methodNamesCmd (unLoc cmd'))
-- Generate the rebindable syntax for the monad
; (cmd_names', cmd_fvs) <- lookupSyntaxNames cmd_names