diff --git a/source/libublsettings-gtk3.c b/source/libublsettings-gtk3.c
index 0e7fe92..eb4e6a7 100644
--- a/source/libublsettings-gtk3.c
+++ b/source/libublsettings-gtk3.c
@@ -287,7 +287,7 @@ struct yon_combo_default_struct {
 };
 
 void _yon_combo_box_set_default_value(struct yon_combo_default_struct *target){
-    gtk_combo_box_text_prepend(target->target,target->command_value,target->default_value);
+    gtk_combo_box_text_prepend(target->target," ",target->default_value);
     if (!yon_char_is_empty(target->default_value)) free(target->command);
     if (!yon_char_is_empty(target->default_value)) free(target->command_value);
 }