diff --git a/src/decode.c b/src/decode.c
index 7dfe2e5..5295b2c 100644
--- a/src/decode.c
+++ b/src/decode.c
@@ -143,7 +143,7 @@ int main(int argc, char **argv) {
         usage(argc, argv, "No TNC device provided");
     }
 
-    if ((tnc = patty_kiss_tnc_open(argv[1], 330)) == NULL) {
+    if ((tnc = patty_kiss_tnc_open(argv[1], PATTY_KISS_BUFSZ)) == NULL) {
         perror("Unable to open TNC");
 
         goto error_kiss_tnc_open;