diff --git a/source/ucli/ucli.cc b/source/ucli/ucli.cc
index d3b9eb4..64fff5d 100644
--- a/source/ucli/ucli.cc
+++ b/source/ucli/ucli.cc
@@ -104,7 +104,7 @@ static int task_info_extract(void *buf, unsigned int len, void *) {
       break;
     vm_record = (variable_monitor_record *)buf;
 
-    printf("threshold exceeded, Timestamp %d :\n", vm_record->tv);
+    printf("threshold exceeded, Timestamp %lld :\n", vm_record->tv);
 
     for (int i = 0; i < vm_record->threshold_num; i++) {
       printf("\t: pid: %d, name: %s, ptr: %p, threshold:%d, true_value:%d\n",