diff --git a/source/ubinstall-gtk-bootloader.c b/source/ubinstall-gtk-bootloader.c
index 3bd4bc4..8838db2 100644
--- a/source/ubinstall-gtk-bootloader.c
+++ b/source/ubinstall-gtk-bootloader.c
@@ -115,7 +115,7 @@ bootloader_user_window *yon_bootloader_user_window_new(){
     g_signal_connect(G_OBJECT(window->CancelButton),"clicked",G_CALLBACK(on_subwindow_close),NULL);
     g_signal_connect(G_OBJECT(window->PasswordButton),"clicked",G_CALLBACK(yon_password_change),window);
     yon_gtk_entry_set_password_visibility_icon(GTK_ENTRY(window->PasswordEntry));
-    yon_gtk_entry_block_restricted_symbols(GTK_ENTRY(window->UsernameEntry));
+    yon_on_entry_set_allowed_symbols(GTK_ENTRY(window->UsernameEntry),"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-*");
     return window;
 }