diff --git a/lib/system/supports-colors.js b/lib/system/supports-colors.js
index 67802ad..68034fc 100644
--- a/lib/system/supports-colors.js
+++ b/lib/system/supports-colors.js
@@ -29,7 +29,7 @@ var hasFlag = require('./has-flag.js');
 
 var env = process.env;
 
-let forceColor;
+var forceColor;
 if (hasFlag('no-color') ||
 	hasFlag('no-colors') ||
 	hasFlag('color=false')) {
@@ -50,7 +50,7 @@ function translateLevel(level) {
 	}
 
 	return {
-		level,
+		level: level,
 		hasBasic: true,
 		has256: level >= 2,
 		has16m: level >= 3