diff --git a/src/invidious/routes/api/v1/authentication.cr b/src/invidious/routes/api/v1/authentication.cr
index 5f16e284..b1fb591e 100644
--- a/src/invidious/routes/api/v1/authentication.cr
+++ b/src/invidious/routes/api/v1/authentication.cr
@@ -250,7 +250,18 @@ struct CaptchaResponse
   property username : String
   property password : String
   property answer : String
-  property tokens : Array(String)
+  property tokens : Array(CaptchaToken)
+end
+
+struct CaptchaToken
+  include JSON::Serializable
+  include YAML::Serializable
+
+  property session : String
+  property expire : Int64
+  property scopes : Array(String)
+  property nonce : String
+  property signature : String
 end
 
 struct Credentials