diff --git a/src/ui/settings/addoncard.jsx b/src/ui/settings/addoncard.jsx
index f77e5e77..1aad2688 100644
--- a/src/ui/settings/addoncard.jsx
+++ b/src/ui/settings/addoncard.jsx
@@ -99,16 +99,19 @@ export default class AddonCard extends React.Component {
const props = {id: `${name}-settings`, className: "addon-settings", ref: this.panelRef};
if (typeof(this.settingsPanel) == "string") {
Logger.warn("Addon Settings", "Using a DOMString is officially deprecated.");
- props.dangerouslySetInnerHTML = this.settingsPanel;
+ props.dangerouslySetInnerHTML = {__html: this.settingsPanel};
}
- let child = null;
+ let child;
if (typeof(this.settingsPanel) === "function") child =