diff --git a/src/plugins/filter-highlight-all/demo.js b/src/plugins/filter-highlight-all/demo.js
index e639e4eeb6..d9f8b55341 100644
--- a/src/plugins/filter-highlight-all/demo.js
+++ b/src/plugins/filter-highlight-all/demo.js
@@ -1,8 +1,13 @@
-// elements with a .no-highlight class will be ignored
-Prism.plugins.filterHighlightAll.reject.addSelector('code.no-highlight');
-Prism.plugins.filterHighlightAll.reject.addSelector('pre.no-highlight > code');
+import prism from '../../global.js';
 
-// don't highlight CSS code
-Prism.plugins.filterHighlightAll.add(env => {
-	return env.language !== 'css';
-});
+// Give Prism a chance to load the plugins
+setTimeout(() => {
+	// elements with a .no-highlight class will be ignored
+	prism.plugins.filterHighlightAll.reject.addSelector('code.no-highlight');
+	prism.plugins.filterHighlightAll.reject.addSelector('pre.no-highlight > code');
+
+	// don't highlight CSS code
+	prism.plugins.filterHighlightAll.add(env => {
+		return env.language !== 'css';
+	});
+}, 100);