diff --git a/orx-gui/src/main/kotlin/Gui.kt b/orx-gui/src/main/kotlin/Gui.kt
index 9ab23b0a..c0385f76 100644
--- a/orx-gui/src/main/kotlin/Gui.kt
+++ b/orx-gui/src/main/kotlin/Gui.kt
@@ -321,10 +321,13 @@ class GUI : Extension {
                     label = parameter.label
                     events.valueChanged.subscribe {
                         value = it.newValue
-                        (parameter.property as KMutableProperty1<Any, Boolean>).set(obj, it.newValue)
+                        setAndPersist(compartment.label, parameter.property as KMutableProperty1<Any, Boolean>, obj, it.newValue)
                         onChangeListener?.invoke(parameter.property!!.name, it.newValue)
                     }
-                    value = (parameter.property as KMutableProperty1<Any, Boolean>).get(obj)
+                    getPersistedOrDefault(compartment.label, parameter.property as KMutableProperty1<Any, Boolean>, obj)?.let {
+                        value = it
+                        setAndPersist(compartment.label, parameter.property as KMutableProperty1<Any, Boolean>, obj, it)
+                    }
                 }
             }
             ParameterType.Text -> {