diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/ObjectStore.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/ObjectStore.java
index e09b1d98bb8..fd3d214a90d 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/ObjectStore.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/ObjectStore.java
@@ -253,6 +253,9 @@ private class VolumeIterator implements Iterator<OzoneVolume> {
 
     @Override
     public boolean hasNext() {
+      // IMPORTANT: Without this logic, remote iteration will not work.
+      // Removing this will break the listVolume call if we try to
+      // list more than 1000 (ozone.client.list.cache ) volumes.
       if (!currentIterator.hasNext() && currentValue != null) {
         currentIterator = getNextListOfVolumes(currentValue.getName())
             .iterator();