diff --git a/jni/dbus/test/data/auth/invalid-hex-encoding.auth-script b/jni/dbus/test/data/auth/invalid-hex-encoding.auth-script
new file mode 100644
index 0000000..1f15c43
--- /dev/null
+++ b/jni/dbus/test/data/auth/invalid-hex-encoding.auth-script
@@ -0,0 +1,6 @@
+## this tests an invalid hex encoding followed by successful authentication
+
+SERVER
+SEND 'AUTH EXTERNAL willy'
+EXPECT_COMMAND ERROR
+EXPECT_STATE WAITING_FOR_INPUT