diff --git a/index.js b/index.js
index 8e74edc1776e70ac3882b33312f44f3bc1ad3983..49683259fb01a81cb552efcc8f9966d64d870e4d 100755
--- a/index.js
+++ b/index.js
@@ -184,7 +184,7 @@ function Log (options) {
               name: this.name
             },
             values: [
-              [Date.now() / 1000, message]
+              [Date.now().toString(), message]
             ]
           }
         ]