diff --git a/src/main/java/org/jenkinsci/plugins/durabletask/FileMonitoringTask.java b/src/main/java/org/jenkinsci/plugins/durabletask/FileMonitoringTask.java
index f2566d97..7ff6db4c 100644
--- a/src/main/java/org/jenkinsci/plugins/durabletask/FileMonitoringTask.java
+++ b/src/main/java/org/jenkinsci/plugins/durabletask/FileMonitoringTask.java
@@ -545,7 +545,7 @@ public FilePath getOutputFile(FilePath workspace) throws IOException, Interrupte
         }
 
         @Override public void watch(FilePath workspace, Handler handler, TaskListener listener) throws IOException, InterruptedException, ClassCastException {
-            workspace.actAsync(new StartWatching(this, handler, listener));
+            workspace.act(new StartWatching(this, handler, listener));
             LOGGER.log(Level.FINE, "started asynchronous watch in {0}", controlDir);
         }