diff --git a/Common/src/Pollster/Pollster.cs b/Common/src/Pollster/Pollster.cs
index 9cbf78707..cc1610dbb 100644
--- a/Common/src/Pollster/Pollster.cs
+++ b/Common/src/Pollster/Pollster.cs
@@ -233,8 +233,8 @@ await taskHandler.StopCancelledTask()
 
   public async Task MainLoop(CancellationToken cancellationToken)
   {
-    var cts = CancellationTokenSource.CreateLinkedTokenSource(lifeTime_.ApplicationStopping,
-                                                              cancellationToken);
+    using var cts = CancellationTokenSource.CreateLinkedTokenSource(lifeTime_.ApplicationStopping,
+                                                                    cancellationToken);
 
     var recordedErrors = new Queue<Exception>();