diff --git a/source/ubl-settings-video.c b/source/ubl-settings-video.c
index 6dfcbc5..f5aa998 100644
--- a/source/ubl-settings-video.c
+++ b/source/ubl-settings-video.c
@@ -1255,7 +1255,8 @@ void yon_adapter_window_setup(main_window *widgets){
 }
 
 void yon_set_sensitive_from_combo_box(GtkComboBox *toggle, GtkWidget *target){
-    gtk_widget_set_sensitive(target,!gtk_combo_box_get_active(toggle)>1 ? 1 : 0);
+    int active = gtk_combo_box_get_active(toggle);
+    gtk_widget_set_sensitive(target,active>1 ? 1 : 0);
 }
 
 /** void yon_setup_widgets(main_window *widgets)
diff --git a/ubl-settings-video.glade b/ubl-settings-video.glade
index dc48158..0acbc20 100644
--- a/ubl-settings-video.glade
+++ b/ubl-settings-video.glade
@@ -884,6 +884,7 @@
                                     <child>
                                       <object class="GtkEntry" id="OptirunEntry">
                                         <property name="visible">True</property>
+                                        <property name="sensitive">False</property>
                                         <property name="can-focus">True</property>
                                       </object>
                                       <packing>
@@ -949,6 +950,7 @@
                                     <child>
                                       <object class="GtkEntry" id="PrimusrunEntry">
                                         <property name="visible">True</property>
+                                        <property name="sensitive">False</property>
                                         <property name="can-focus">True</property>
                                       </object>
                                       <packing>