diff --git a/lib/CSSValueExpression.js b/lib/CSSValueExpression.js
index 489f2e2..3a6881d 100644
--- a/lib/CSSValueExpression.js
+++ b/lib/CSSValueExpression.js
@@ -137,14 +137,14 @@ CSSOM.CSSValueExpression.prototype._parseJSComment = function(token, idx) {
 	var nextChar = token.charAt(idx + 1),
 			text;
 
-	if (nextChar == '/' || nextChar == '*') {
+	if (nextChar === '/' || nextChar === '*') {
 		var startIdx = idx,
 				endIdx,
 				commentEndChar;
 
-		if (nextChar == '/') { // line comment
+		if (nextChar === '/') { // line comment
 			commentEndChar = '\n';
-		} else if (nextChar == '*') { // block comment
+		} else if (nextChar === '*') { // block comment
 			commentEndChar = '*/';
 		}