diff --git a/Filters/HyperTree/vtkHyperTreeGridThreshold.cxx b/Filters/HyperTree/vtkHyperTreeGridThreshold.cxx
index 6b401bfd..85add9f8 100644
--- a/Filters/HyperTree/vtkHyperTreeGridThreshold.cxx
+++ b/Filters/HyperTree/vtkHyperTreeGridThreshold.cxx
@@ -307,7 +307,7 @@ int vtkHyperTreeGridThreshold::ProcessTrees(vtkHyperTreeGrid* input, vtkDataObje
         break;
       }
 
-      queue.Push(static_cast<int>(outIndex));
+      queue.Push(std::move(static_cast<int>(outIndex)));
     }
 
     queue.Flush();
diff --git a/Rendering/UI/vtkWin32RenderWindowInteractor.cxx b/Rendering/UI/vtkWin32RenderWindowInteractor.cxx
index f00daf39..00707611 100644
--- a/Rendering/UI/vtkWin32RenderWindowInteractor.cxx
+++ b/Rendering/UI/vtkWin32RenderWindowInteractor.cxx
@@ -217,7 +217,7 @@ public:
   std::map<int, std::unique_ptr<TimerContext>> TimerContextMap;
   bool IsRunning = false;
 
-  static void OnTimerFired(PVOID lpParameter, BOOLEAN)
+  static void WINAPI OnTimerFired(PVOID lpParameter, BOOLEAN)
   {
     auto* timerContext = static_cast<TimerContext*>(lpParameter);
     // Do not post another message for the same timer if already posted