diff --git a/test/consolidateSheet.test.js b/test/consolidateSheet.test.js
index 0af36d8..38ac659 100644
--- a/test/consolidateSheet.test.js
+++ b/test/consolidateSheet.test.js
@@ -3,6 +3,8 @@ import { expect } from 'chai';
 
 import consolidateSheet from '../src/consolidateSheet.js';
 
+jsdomGlobal()();
+
 describe('consolidateSheet', function () {
   it('should be a function', function () {
     expect(consolidateSheet).to.be.a('function');
diff --git a/test/createSymbols.test.js b/test/createSymbols.test.js
index b5f168e..dbfdeee 100644
--- a/test/createSymbols.test.js
+++ b/test/createSymbols.test.js
@@ -4,6 +4,8 @@ import { expect } from 'chai';
 
 import createSymbols from '../src/createSymbols.js';
 
+jsdomGlobal()();
+
 describe('createSymbols', function () {
   it('should be a function', function () {
     expect(createSymbols).to.be.a('function');
diff --git a/test/injectionManager.test.js b/test/injectionManager.test.js
index 37c79b2..6e27e9f 100644
--- a/test/injectionManager.test.js
+++ b/test/injectionManager.test.js
@@ -3,6 +3,8 @@ import { expect } from 'chai';
 
 import { injectionStyle, injectionAttrs, injectionFn } from '../src/injectionManager.js';
 
+jsdomGlobal()();
+
 describe('injectionManager', function () {
   it('should export style', function () {
     expect(injectionStyle).to.equal('<style>@keyframes nodeDetected { to { opacity: 1; } }</style>');
diff --git a/test/savager.test.js b/test/savager.test.js
index ef2b088..a069ead 100644
--- a/test/savager.test.js
+++ b/test/savager.test.js
@@ -3,6 +3,8 @@ import { expect } from 'chai';
 
 import Savager from '../src/savager.js';
 
+jsdomGlobal()();
+
 describe('Savager', function () {
  
   it('should be a function', function () {