diff --git a/src/components/structures/auth/Registration.js b/src/components/structures/auth/Registration.js
index e8938da5c1..6349614d72 100644
--- a/src/components/structures/auth/Registration.js
+++ b/src/components/structures/auth/Registration.js
@@ -248,8 +248,7 @@ export default createReactClass({
             // need to.
             if (!this.state.doingUIAuth) {
                 await this._makeRegisterRequest(null);
-                // This should never succeed since we specified an empty
-                // auth object.
+                // This should never succeed since we specified no auth object.
                 console.log("Expecting 401 from register request but got success!");
             }
         } catch (e) {
diff --git a/src/components/views/auth/InteractiveAuthEntryComponents.js b/src/components/views/auth/InteractiveAuthEntryComponents.js
index e404f15d28..655452fcee 100644
--- a/src/components/views/auth/InteractiveAuthEntryComponents.js
+++ b/src/components/views/auth/InteractiveAuthEntryComponents.js
@@ -740,7 +740,7 @@ export const FallbackAuthEntry = createReactClass({
             event.data === "authDone" &&
             event.origin === this.props.matrixClient.getHomeserverUrl()
         ) {
-            this.props.submitAuthDict(null);
+            this.props.submitAuthDict({});
         }
     },