diff --git a/CavernSamples/CavernPipeServer/PipeHandler.cs b/CavernSamples/CavernPipeServer/PipeHandler.cs
index e6c6972..81dcbd3 100644
--- a/CavernSamples/CavernPipeServer/PipeHandler.cs
+++ b/CavernSamples/CavernPipeServer/PipeHandler.cs
@@ -73,6 +73,7 @@ public void Dispose() {
                 }
             }
             thread.Join();
+            canceler.Dispose();
             GC.SuppressFinalize(this);
         }