diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index e6b932ef..4f7c6a91 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -23,7 +23,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 // eslint-disable-next-line no-unused-vars,no-var
-var getJasmineRequireObj = (function(jasmineGlobal) {
+var getJasmineRequireObj = (function() {
   'use strict';
   let jasmineRequire;
 
@@ -36,7 +36,7 @@ var getJasmineRequireObj = (function(jasmineGlobal) {
     jasmineRequire = exports;
   } else {
     // Browser
-    jasmineRequire = jasmineGlobal.jasmineRequire = {};
+    jasmineRequire = globalThis.jasmineRequire = {};
   }
 
   function getJasmineRequire() {
diff --git a/src/core/requireCore.js b/src/core/requireCore.js
index 4fbe9abd..fc63800b 100644
--- a/src/core/requireCore.js
+++ b/src/core/requireCore.js
@@ -1,5 +1,5 @@
 // eslint-disable-next-line no-unused-vars,no-var
-var getJasmineRequireObj = (function(jasmineGlobal) {
+var getJasmineRequireObj = (function() {
   'use strict';
   let jasmineRequire;
 
@@ -12,7 +12,7 @@ var getJasmineRequireObj = (function(jasmineGlobal) {
     jasmineRequire = exports;
   } else {
     // Browser
-    jasmineRequire = jasmineGlobal.jasmineRequire = {};
+    jasmineRequire = globalThis.jasmineRequire = {};
   }
 
   function getJasmineRequire() {