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-rw-r--r--testsuite/tests/perf/compiler/T3064.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/testsuite/tests/perf/compiler/T3064.hs b/testsuite/tests/perf/compiler/T3064.hs
index 298a09cecf..af3dc2cde7 100644
--- a/testsuite/tests/perf/compiler/T3064.hs
+++ b/testsuite/tests/perf/compiler/T3064.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE Haskell2010 #-}
{-# OPTIONS_GHC -fno-warn-redundant-constraints #-}
{-# LANGUAGE Rank2Types, TypeSynonymInstances, FlexibleInstances #-}
{-# LANGUAGE TypeFamilies, GeneralizedNewtypeDeriving #-}