diff --git a/lib/jasmine-core.js b/lib/jasmine-core.js
index e20680c4..30b95b2e 100644
--- a/lib/jasmine-core.js
+++ b/lib/jasmine-core.js
@@ -6,7 +6,7 @@
 const jasmineRequire = require('./jasmine-core/jasmine.js');
 module.exports = jasmineRequire;
 
-const boot = (function() {
+const bootWithoutGlobals = (function() {
   let jasmine, jasmineInterface;
 
   return function bootWithoutGlobals(reinitialize) {
@@ -22,14 +22,16 @@ const boot = (function() {
 
 /**
  * Boots a copy of Jasmine and returns an object as described in {@link jasmine}.
- * If boot is called multiple times, the same object is returned every time
- * unless true is passed.
- * @param {boolean} [reinitialize=false] Whether to create a new copy of Jasmine if one already exists
+ * @param {boolean} [reinitialize=true] Whether to create a new copy of Jasmine if one already exists
  * @type {function}
  * @return {jasmine}
  */
 module.exports.boot = function(reinitialize) {
-  const {jasmine, jasmineInterface} = boot(reinitialize);
+  if (reinitialize === undefined) {
+    reinitialize = true;
+  }
+
+  const {jasmine, jasmineInterface} = bootWithoutGlobals(reinitialize);
 
   for (const k in jasmineInterface) {
     global[k] = jasmineInterface[k];
@@ -48,7 +50,7 @@ module.exports.boot = function(reinitialize) {
  * const {describe, beforeEach, it, expect, jasmine} = require('jasmine-core').noGlobals();
  */
 module.exports.noGlobals = function(reinitialize) {
-  const {jasmineInterface} = boot(reinitialize);
+  const {jasmineInterface} = bootWithoutGlobals(reinitialize);
   return jasmineInterface;
 };