diff --git a/XeRelease_Gtkmm4/src/MyPrefs.hh b/XeRelease_Gtkmm4/src/MyPrefs.hh
index d595a23..4b29a64 100644
--- a/XeRelease_Gtkmm4/src/MyPrefs.hh
+++ b/XeRelease_Gtkmm4/src/MyPrefs.hh
@@ -34,7 +34,7 @@ public:
     void init_json_data(json &data1);
     void save_config_now();
     void set_dark_mode(bool dark_mode_enabled);
-    int background_id;
+    int background_id = 3;
 
 private:
     Glib::RefPtr<Gtk::Builder> ref_Glade;
diff --git a/XeRelease_Gtkmm4/src/MyWin.hh b/XeRelease_Gtkmm4/src/MyWin.hh
index c24ea13..f35f408 100644
--- a/XeRelease_Gtkmm4/src/MyWin.hh
+++ b/XeRelease_Gtkmm4/src/MyWin.hh
@@ -40,7 +40,7 @@ private:
     MsgBox msg_dialog;
 
     // Backgrounds
-    int back_id;
+    int back_id = 3;
     bool start = true;
     void background1();
     void background2();