diff --git a/utility.h b/utility.h
index b068d1a..4b67bbd 100644
--- a/utility.h
+++ b/utility.h
@@ -7,4 +7,6 @@
 long int get_current_time_sec(void);
 long int get_current_time_microsec(void);
 
+char * get_current_timestamp_micro(void);
+
 #endif