diff --git a/tests/recv/test_parse_packet.c b/tests/recv/test_parse_packet.c
index 41e1d5d..8fcd9fd 100644
--- a/tests/recv/test_parse_packet.c
+++ b/tests/recv/test_parse_packet.c
@@ -45,7 +45,7 @@ Test(parse_packet, valid_packet)
 
 Test(parse_packet, buffer_too_small)
 {
-	uint8_t buffer[10];
+	uint8_t buffer[10] = {0};
 	uint8_t type, code, ttl;
 	struct in_addr src_addr;
 	const void *payload;