diff --git a/src/tools/remote/src/main/java/com/google/devtools/build/remote/worker/ExecutionServer.java b/src/tools/remote/src/main/java/com/google/devtools/build/remote/worker/ExecutionServer.java
index 8a16a4260ad8c6..fdac75953fc327 100644
--- a/src/tools/remote/src/main/java/com/google/devtools/build/remote/worker/ExecutionServer.java
+++ b/src/tools/remote/src/main/java/com/google/devtools/build/remote/worker/ExecutionServer.java
@@ -217,11 +217,7 @@ public void execute(ExecuteRequest request, StreamObserver<Operation> responseOb
         executorService.submit(() -> execute(context, request, opName));
     operationsCache.put(opName, future);
     ((ServerCallStreamObserver<Operation>) responseObserver)
-        .setOnCancelHandler(
-            () -> {
-              future.cancel(false);
-              operationsCache.remove(opName);
-            });
+        .setOnCancelHandler(() -> operationsCache.remove(opName));
     // Send the first operation.
     responseObserver.onNext(Operation.newBuilder().setName(opName).build());
     // When the operation completes, send the result.