diff --git a/tests/lean/ll_infer_type_bug.lean b/tests/lean/ll_infer_type_bug.lean
index ad2145ed28..cce74d258e 100644
--- a/tests/lean/ll_infer_type_bug.lean
+++ b/tests/lean/ll_infer_type_bug.lean
@@ -1,6 +1,6 @@
 def f : List Nat → Bool
-| []      := false
-| (a::as) := a > 0 && f as
+| []      => false
+| (a::as) => a > 0 && f as
 
 #check f._main._cstage2