diff --git a/accurate_battery.c b/accurate_battery.c
index 4bde02a..b4bf790 100644
--- a/accurate_battery.c
+++ b/accurate_battery.c
@@ -10,7 +10,7 @@ void set_value(char *file, char *numb)
     FILE *fn;
     if(access(file, F_OK) == 0)
     {
-        chmod(file, 777);
+        chmod(file, 0777);
         fn = fopen(file, "wt");
         if(fn != NULL)
         {