diff --git a/Tusker/Screens/Onboarding/OnboardingViewController.swift b/Tusker/Screens/Onboarding/OnboardingViewController.swift
index fe13b67d..9b7750f8 100644
--- a/Tusker/Screens/Onboarding/OnboardingViewController.swift
+++ b/Tusker/Screens/Onboarding/OnboardingViewController.swift
@@ -48,19 +48,17 @@ extension OnboardingViewController: InstanceSelectorTableViewControllerDelegate
         let mastodonController = MastodonController(instanceURL: instanceURL)
         mastodonController.registerApp { (clientID, clientSecret) in
 
-            let callbackURL = "tusker://oauth"
-            
             var components = URLComponents(url: instanceURL, resolvingAgainstBaseURL: false)!
             components.path = "/oauth/authorize"
             components.queryItems = [
                 URLQueryItem(name: "client_id", value: clientID),
                 URLQueryItem(name: "response_type", value: "code"),
                 URLQueryItem(name: "scope", value: "read write follow"),
-                URLQueryItem(name: "redirect_uri", value: callbackURL)
+                URLQueryItem(name: "redirect_uri", value: "tusker://oauth")
             ]
             let authorizeURL = components.url!
             
-            self.authenticationSession = ASWebAuthenticationSession(url: authorizeURL, callbackURLScheme: callbackURL) { url, error in
+            self.authenticationSession = ASWebAuthenticationSession(url: authorizeURL, callbackURLScheme: "tusker") { url, error in
                 guard error == nil,
                     let url = url,
                     let components = URLComponents(url: url, resolvingAgainstBaseURL: true),