diff --git a/source/ublexec.cc b/source/ublexec.cc
index fb7837c..fcdd503 100644
--- a/source/ublexec.cc
+++ b/source/ublexec.cc
@@ -324,7 +324,6 @@ void MainWindow::unselect_icon(Gtk::IconView *icon_entry){
 }
 
 void MainWindow::settings(){
-    system("nohup xhost + local:  > /dev/null 2>&1 &");
     this->pars_apps();
     this->get_builder();
     this->event();
@@ -506,6 +505,11 @@ string MainWindow::start_cmd(string user_cmd){
             }
         }
     }
+    if (cmbUser->get_active_text().length()!=0){
+        string user_cmd_X = "xhost +SI:localuser:";
+        user_cmd_X += cmbUser->get_active_text();
+        system(user_cmd_X.c_str());
+    }
     if ((cbxExecuteEpriority->get_active()) && (chbAnotherUser->get_active()==false)){
         str_nice_cmd = " nice -n " + to_string(spinPriority->get_value_as_int()) + " ";
     }