diff --git a/demo/client.ts b/demo/client.ts
index ae7f1968..4098c775 100644
--- a/demo/client.ts
+++ b/demo/client.ts
@@ -184,6 +184,7 @@ function createTerminal(): void {
   addons.serialize.instance = new SerializeAddon();
   addons.fit.instance = new FitAddon();
   addons.unicode11.instance = new Unicode11Addon();
+  addons.webgl.instance = new WebglAddon();
   // TODO: Remove arguments when link provider API is the default
   addons['web-links'].instance = new WebLinksAddon(undefined, undefined, true);
   typedTerm.loadAddon(addons.fit.instance);
@@ -208,6 +209,7 @@ function createTerminal(): void {
 
   term.open(terminalContainer);
   addons.fit.instance!.fit();
+  typedTerm.loadAddon(addons.webgl.instance);
   term.focus();
 
   addDomListener(paddingElement, 'change', setPadding);