diff --git a/config/config.js.sample b/config/config.js.sample
index 99ab2ead..0b5f45d4 100644
--- a/config/config.js.sample
+++ b/config/config.js.sample
@@ -9,6 +9,7 @@ var config = {
 
 	language: 'en',
 	timeFormat: 24,
+	units: 'metric',
 
 	modules: [
 		{