diff --git a/extension.js b/extension.js
index da24964..349e8e1 100644
--- a/extension.js
+++ b/extension.js
@@ -8,25 +8,8 @@ const ExtensionUtils = imports.misc.extensionUtils;
 const Self = ExtensionUtils.getCurrentExtension();
 const Convenience = Self.imports.convenience;
 
-const ui = imports.ui;
-
 const SHORTCUT = 'invert-window-shortcut';
 
-function inject_after(proto, name, func) {
-	let orig = proto[name];
-
-	proto[name] = function() {
-		let ret = orig.apply(this, arguments);
-		return func.apply(this, [ret].concat([].slice.call(arguments)));
-	}
-
-	return orig;
-}
-
-function remove_injection(proto, name, orig) {
-	proto[name] = orig;
-}
-
 const InvertWindowEffect = new Lang.Class({
 	Name: 'InvertWindowEffect',
 	Extends: Clutter.ShaderEffect,
@@ -55,8 +38,6 @@ const InvertWindowEffect = new Lang.Class({
 
 function InvertWindow() {
 	this.settings = Convenience.getSettings();
-	this.workspace_injection = null;
-	this.alttab_injection = null;
 }
 
 InvertWindow.prototype = {
@@ -86,22 +67,6 @@ InvertWindow.prototype = {
 			Lang.bind(this, this.toggle_effect)
 		);
 
-		this.workspace_injection = inject_after(ui.workspace.WindowClone.prototype, '_init', function(ret) {
-			if(this.realWindow.get_effect('invert-color')) {
-				let effect = new InvertWindowEffect();
-				this.actor.add_effect_with_name('invert-color', effect);
-			}
-			return ret;
-		});
-
-		this.alttab_injection = inject_after(ui.altTab, '_createWindowClone', function(clone, window, size) {
-			if(window.get_effect('invert-color')) {
-				let effect = new InvertWindowEffect();
-				clone.add_effect_with_name('invert-color', effect);
-			}
-			return clone;
-		});
-
 		global.get_window_actors().forEach(function(actor) {
 			let meta_window = actor.get_meta_window();
 			if(meta_window.hasOwnProperty('_invert_window_tag')) {
@@ -117,12 +82,6 @@ InvertWindow.prototype = {
 		global.get_window_actors().forEach(function(actor) {
 			actor.remove_effect_by_name('invert-color');
 		}, this);
-
-		remove_injection(ui.workspace.WindowClone.prototype, '_init', this.workspace_injection);
-		this.workspace_injection = null;
-
-		remove_injection(ui.altTab, '_createWindowClone', this.alttab_injection);
-		this.alttab_injection = null;
 	}
 };
 
diff --git a/metadata.json b/metadata.json
index 7f1f011..3a3e5ae 100644
--- a/metadata.json
+++ b/metadata.json
@@ -3,7 +3,9 @@
 	"name": "Invert Window Color",
 	"description": "Inverts the color of individual windows\nDefault shortcut is Super+I",
 	"url": "https://github.com/maiself/gnome-shell-extension-invert-color",
-	"shell-version": ["3.16", "3.18", "3.20"],
+	"shell-version": [
+		"3.32"
+	],
 	"settings-schema": "org.gnome.shell.extensions.invert-window",
-	"version": 1
+	"version": 5
 }