1 files changed, 1 insertions, 1 deletions
diff --git a/kiss/mkiss.c b/kiss/mkiss.c
index bfdbdf5..35e7ed0 100644
--- a/kiss/mkiss.c
+++ b/kiss/mkiss.c
@@ -142,7 +142,7 @@ static void init_crc(void)
 
 static int poll(int fd, int ports)
 {
-	char buffer[3];
+	unsigned char buffer[3];
 	static int port;
 
 	buffer[0] = FEND;