diff --git a/thermion_dart/lib/src/viewer/src/shared_types/render_target.dart b/thermion_dart/lib/src/viewer/src/shared_types/render_target.dart
index 4b648e6a..2af9620d 100644
--- a/thermion_dart/lib/src/viewer/src/shared_types/render_target.dart
+++ b/thermion_dart/lib/src/viewer/src/shared_types/render_target.dart
@@ -1,3 +1,3 @@
 abstract class RenderTarget {
-  Future destroy();
+  
 }
diff --git a/thermion_dart/lib/src/viewer/src/shared_types/swap_chain.dart b/thermion_dart/lib/src/viewer/src/shared_types/swap_chain.dart
index 0c89746b..e15393c3 100644
--- a/thermion_dart/lib/src/viewer/src/shared_types/swap_chain.dart
+++ b/thermion_dart/lib/src/viewer/src/shared_types/swap_chain.dart
@@ -1,3 +1,3 @@
 abstract class SwapChain {
-  Future destroy();
+  
 }