diff --git a/unit/test-avdtp.c b/unit/test-avdtp.c
index 9919b6d..b02334f 100644
--- a/unit/test-avdtp.c
+++ b/unit/test-avdtp.c
@@ -857,6 +857,17 @@ int main(int argc, char *argv[])
 			raw_pdu(0x82, 0x06),
 			raw_pdu(0x90, 0x07, 0x04),
 			raw_pdu(0x93, 0x07, 0x04, 0x31));
+	define_test("/TP/SIG/SMG/BI-20-C", test_server,
+			raw_pdu(0x00, 0x01),
+			raw_pdu(0x02, 0x01, 0x04, 0x00),
+			raw_pdu(0x10, 0x02, 0x04),
+			raw_pdu(0x12, 0x02, 0x01, 0x00, 0x07, 0x06, 0x00, 0x00,
+				0xff, 0xff, 0x02, 0x40),
+			raw_pdu(0x20, 0x03, 0x04, 0x04, 0x01, 0x00, 0x07, 0x06,
+				0x00, 0x00, 0x21, 0x02, 0x02, 0x20),
+			raw_pdu(0x22, 0x03),
+			raw_pdu(0x30, 0x07, 0x04),
+			raw_pdu(0x33, 0x07, 0x04, 0x31));
 
 	return g_test_run();
 }