1 files changed, 12 insertions, 0 deletions
diff --git a/testsuite/tests/deriving/should_fail/Roles9.hs b/testsuite/tests/deriving/should_fail/Roles9.hs
new file mode 100644
index 0000000000..86d10a3063
--- /dev/null
+++ b/testsuite/tests/deriving/should_fail/Roles9.hs
@@ -0,0 +1,12 @@
+{-# LANGUAGE GeneralizedNewtypeDeriving, RoleAnnotations #-}
+
+module Roles9 where
+
+class C a@N where
+  meth :: a -> a
+
+instance C Int where
+  meth = (+ 1)
+
+newtype Age = MkAge Int
+  deriving C