diff --git a/lib/parser/Parser.js b/lib/parser/Parser.js
index 48e8579..34437ad 100644
--- a/lib/parser/Parser.js
+++ b/lib/parser/Parser.js
@@ -21,8 +21,8 @@ var e = require('../Grammar').elements,
  *      expression string thus far can be passed for a more user-friendly
  *      error message.
  * @param {{}} [stopMap] A mapping of token types to any truthy value. When the
- *      token type is encountered with a zero balance, the parser will be
- *      automatically marked complete.
+ *      token type is encountered, the parser will return the mapped value
+ *      instead of boolean false.
  * @constructor
  */
 function Parser(prefix, stopMap) {
@@ -41,7 +41,7 @@ function Parser(prefix, stopMap) {
  * @throws {Error} if a token is added when the Parser has been marked as
  *      complete by {@link #complete}, or if an unexpected token type is added.
  * @returns {boolean|*} the stopState value if this parser encountered a token
- *      in the stopState map with a truthy value; false if tokens can continue.
+ *      in the stopState mapb; false if tokens can continue.
  */
 Parser.prototype.addToken = function(token) {
 	if (this._state == 'complete')