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-rw-r--r--testsuite/tests/deriving/should_compile/T14578.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/testsuite/tests/deriving/should_compile/T14578.hs b/testsuite/tests/deriving/should_compile/T14578.hs
index d0700ea9b0..231796cda9 100644
--- a/testsuite/tests/deriving/should_compile/T14578.hs
+++ b/testsuite/tests/deriving/should_compile/T14578.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE Haskell2010 #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
module T14578 where