diff --git a/src/timestamp.c b/src/timestamp.c
index 6a23dc3..e81cda2 100644
--- a/src/timestamp.c
+++ b/src/timestamp.c
@@ -77,7 +77,7 @@ char *timestamp_current_time(void)
             len = strftime(time_string, sizeof(time_string), "%Y-%m-%dT%H:%M:%S", tm);
             break;
         case TIMESTAMP_EPOCH:
-            // "1223" (seconds since Unix epoch, 1970-01-01 00:00:00Z)
+            // "N.sss" (seconds since Unix epoch, 1970-01-01 00:00:00Z)
             tv = tv_now;
             tm = localtime(&tv.tv_sec);
             len = strftime(time_string, sizeof(time_string), "%s", tm);