diff --git a/src/CreateCrossSigning.ts b/src/CreateCrossSigning.ts
index c8e7aa3e73..5f6f3e48aa 100644
--- a/src/CreateCrossSigning.ts
+++ b/src/CreateCrossSigning.ts
@@ -38,10 +38,10 @@ export async function createCrossSigning(cli: MatrixClient): Promise<void> {
 
 export async function uiAuthCallback(
     matrixClient: MatrixClient,
-    makeRequest: (authData: AuthDict) => Promise<void>,
+    makeRequest: (authData: AuthDict | null) => Promise<void>,
 ): Promise<void> {
     try {
-        await makeRequest({});
+        await makeRequest(null);
     } catch (error) {
         if (!(error instanceof MatrixError) || !error.data || !error.data.flows) {
             // Not a UIA response
diff --git a/test/CreateCrossSigning-test.ts b/test/CreateCrossSigning-test.ts
index cd2bf904cd..09bb3b5a63 100644
--- a/test/CreateCrossSigning-test.ts
+++ b/test/CreateCrossSigning-test.ts
@@ -45,7 +45,7 @@ describe("CreateCrossSigning", () => {
 
         const makeRequest = jest.fn();
         await authUploadDeviceSigningKeys!(makeRequest);
-        expect(makeRequest).toHaveBeenCalledWith({});
+        expect(makeRequest).toHaveBeenCalledWith(null);
     });
 
     it("should prompt user if upload failed with UIA", async () => {