diff --git a/thermion_dart/lib/src/viewer/src/ffi/src/ffi_filament_app.dart b/thermion_dart/lib/src/viewer/src/ffi/src/ffi_filament_app.dart
index 506ca6a0..22d4c913 100644
--- a/thermion_dart/lib/src/viewer/src/ffi/src/ffi_filament_app.dart
+++ b/thermion_dart/lib/src/viewer/src/ffi/src/ffi_filament_app.dart
@@ -226,6 +226,7 @@ class FFIFilamentApp extends FilamentApp<Pointer> {
     RenderTicker_destroy(renderTicker);
 
     calloc.free(viewsPtr);
+    FilamentApp.instance = null;
   }
 
   ///