diff --git a/src/tcpreplay.c b/src/tcpreplay.c
index f5e9dc8..e246c73 100644
--- a/src/tcpreplay.c
+++ b/src/tcpreplay.c
@@ -1088,7 +1088,8 @@ int stream_burst_marsio_init(void)
 	marsio_option_set(tcpburst_marsio4_instance, MARSIO_OPT_THREAD_MASK, &marsio_cpu_mask, sizeof(long));
 
 	srand(time(NULL));
-	snprintf(app_name, 64, "%s_%c%c%c", "tcpburst", 'a'+random()%26, 'a'+random()%26,'a'+random()%26);
+	//snprintf(app_name, 64, "%s_%c%c%c", "tcpburst", 'a'+random()%26, 'a'+random()%26,'a'+random()%26);
+	snprintf(app_name, 64, "%s_%d", "tcpburst", getpid());
 	
 	if(marsio_init(tcpburst_marsio4_instance, app_name) < 0){
 		fprintf(stderr,"%s\n","marsio_init() error!\n");