diff --git a/tests/test_cases/input/unicode_escaped_fail.kdl b/tests/test_cases/input/unicode_escaped_fail.kdl
new file mode 100644
index 0000000..7ae8019
--- /dev/null
+++ b/tests/test_cases/input/unicode_escaped_fail.kdl
@@ -0,0 +1 @@
+no "Surrogates high\u{D800}\u{D911}\u{DABB}\u{DBFF} low\u{DC00}\u{DEAD}\u{DFFF}"