diff --git a/Sources/arm/ui/BoxPreferences.hx b/Sources/arm/ui/BoxPreferences.hx
index d834c161..ed275d33 100644
--- a/Sources/arm/ui/BoxPreferences.hx
+++ b/Sources/arm/ui/BoxPreferences.hx
@@ -79,6 +79,8 @@ class BoxPreferences {
 							ui.t.ELEMENT_H = App.ELEMENT_H;
 							Config.restore();
 							setScale();
+							for (f in files) Plugin.stop(f);
+							files = null;
 						}
 					});
 				}