diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/volume/ThrottledAsyncChecker.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/volume/ThrottledAsyncChecker.java
index 9e023a74127..6cb0679e3cc 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/volume/ThrottledAsyncChecker.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/volume/ThrottledAsyncChecker.java
@@ -115,7 +115,7 @@ public ThrottledAsyncChecker(final Timer timer,
    * will receive the same Future.
    */
   @Override
-  public Optional<ListenableFuture<V>> schedule(
+  public synchronized Optional<ListenableFuture<V>> schedule(
       Checkable<K, V> target, K context) {
     if (checksInProgress.containsKey(target)) {
       return Optional.empty();