diff --git a/src/logger/main.c b/src/logger/main.c
index b7833c5..04781dc 100644
--- a/src/logger/main.c
+++ b/src/logger/main.c
@@ -10,6 +10,7 @@
 #include <unistd.h>
 #include <sys/stat.h>
 #include "../utils.h"
+#include <time.h>
 
 void start(char *power_path, char *busid, char *chipaddr);
 
@@ -42,7 +43,9 @@ void start(char *power_path, char *busid, char *chipaddr){
   mkdir(outdir,0755);
 
   char outfile[255];
-  sprintf(outfile,"%s/%s",outdir,"flk");
+  time_t timestamp;
+  timestamp = time(NULL);
+  sprintf(outfile,"%s/%d",outdir,timestamp);
   printf("aa %s\n",outfile);
 
   FILE *f;