diff --git a/Localizations/Localizable.strings b/Localizations/Localizable.strings
index bc6508d..f85cffd 100644
--- a/Localizations/Localizable.strings
+++ b/Localizations/Localizable.strings
@@ -5,7 +5,6 @@
 "add-identity.instance-url" = "Instance URL";
 "add-identity.log-in" = "Log in";
 "add-identity.browse-anonymously" = "Browse anonymously";
-"oauth.error.code-not-found" = "OAuth error: code not found";
 "secondary-navigation.manage-accounts" = "Manage Accounts";
 "secondary-navigation.lists" = "Lists";
 "secondary-navigation.preferences" = "Preferences";
diff --git a/ServiceLayer/Sources/ServiceLayer/AuthenticationService.swift b/ServiceLayer/Sources/ServiceLayer/AuthenticationService.swift
index e0c109f..dee2f5f 100644
--- a/ServiceLayer/Sources/ServiceLayer/AuthenticationService.swift
+++ b/ServiceLayer/Sources/ServiceLayer/AuthenticationService.swift
@@ -82,7 +82,7 @@ private extension AuthenticationService {
         static let website = URL(string: "https://metabolist.com/metatext")!
     }
 
-    enum OAuthError {
+    enum OAuthError: Error {
         case codeNotFound
     }
 
@@ -102,12 +102,3 @@ private extension AuthenticationService {
         return authorizationURLComponents.url
     }
 }
-
-extension AuthenticationService.OAuthError: LocalizedError {
-    var errorDescription: String? {
-        switch self {
-        case .codeNotFound:
-            return NSLocalizedString("oauth.error.code-not-found", comment: "")
-        }
-    }
-}