diff --git a/src/matrix-api.c b/src/matrix-api.c
index 6409bf4..017aabe 100644
--- a/src/matrix-api.c
+++ b/src/matrix-api.c
@@ -1955,6 +1955,7 @@ matrix_api_set_display_name(MatrixAPI *api,
  *            finished
  * @user_data: (closure): user data to pass to the callback function
  *             @callback
+ * @account_kind: the type of account to register
  * @bind_email: if %TRUE, the server binds the e-mail used for
  *              authentication to the Matrix ID with the ID server
  * @username: (allow-none): the local part of the desired Matrix
@@ -1969,6 +1970,7 @@ void
 matrix_api_register_account(MatrixAPI *api,
                             MatrixAPICallback callback,
                             gpointer user_data,
+                            MatrixAPIAccountKind account_kind,
                             gboolean bind_email,
                             const gchar *username,
                             const gchar *password,
@@ -1977,8 +1979,8 @@ matrix_api_register_account(MatrixAPI *api,
     g_return_if_fail(MATRIX_IS_API(api));
 
     MATRIX_API_GET_IFACE(api)
-        ->register_account(api, callback, user_data, bind_email,
-                           username, password, error);
+        ->register_account(api, callback, user_data, account_kind,
+                           bind_email, username, password, error);
 }
 
 /**
diff --git a/src/matrix-api.h b/src/matrix-api.h
index f1092a3..d30cfc9 100644
--- a/src/matrix-api.h
+++ b/src/matrix-api.h
@@ -424,6 +424,7 @@ struct _MatrixAPIInterface {
     void (*register_account)(MatrixAPI *api,
                              MatrixAPICallback callback,
                              gpointer user_data,
+                             MatrixAPIAccountKind account_kind,
                              gboolean bind_email,
                              const gchar *username,
                              const gchar *password,
@@ -844,6 +845,7 @@ void matrix_api_set_display_name(MatrixAPI *api,
 void matrix_api_register_account(MatrixAPI *api,
                                  MatrixAPICallback callback,
                                  gpointer user_data,
+                                 MatrixAPIAccountKind account_kind,
                                  gboolean bind_email,
                                  const gchar *username,
                                  const gchar *password,