diff --git a/testsuite/tests/typecheck/should_compile/T10347.hs b/testsuite/tests/typecheck/should_compile/T10347.hs
new file mode 100644
index 0000000000000000000000000000000000000000..9187a931959c76b8819dcd61cd374f9b8f16cdd9
--- /dev/null
+++ b/testsuite/tests/typecheck/should_compile/T10347.hs
@@ -0,0 +1,10 @@
+{-# LANGUAGE -fwarn-unusued-bindings #-}
+
+module T10347 (N, mkN) where
+
+import Data.Coerce
+
+newtype N a = MkN Int
+
+mkN :: Int -> N a
+mkN = coerce
diff --git a/testsuite/tests/typecheck/should_compile/all.T b/testsuite/tests/typecheck/should_compile/all.T
index eff84032b1e3b3ea3a68ff6d0f36cd84e721827b..6f34db479965404bbae6271052462425209216a0 100644
--- a/testsuite/tests/typecheck/should_compile/all.T
+++ b/testsuite/tests/typecheck/should_compile/all.T
@@ -474,3 +474,4 @@ test('T10632', normal, compile, [''])
 test('T10642', normal, compile, [''])
 test('T10744', normal, compile, [''])
 test('update-existential', normal, compile, [''])
+test('T10347', expect_broken(10347), compile, [''])