diff --git a/lib/6to5/types/index.js b/lib/6to5/types/index.js
index 21aa975630..78c79f52b9 100644
--- a/lib/6to5/types/index.js
+++ b/lib/6to5/types/index.js
@@ -226,7 +226,7 @@ t.prependToMemberExpression = function (member, append) {
 };
 
 /**
- * Check if the input `node` is going to be evaluated, ie. is a refernece.
+ * Check if the input `node` is a reference to a bound variable.
  *
  * @param {Object} node
  * @param {Object} parent