diff --git a/cdm/s3/src/main/java/thredds/filesystem/s3/ControllerS3.java b/cdm/s3/src/main/java/thredds/filesystem/s3/ControllerS3.java
index e422c2c011..c15d03b144 100644
--- a/cdm/s3/src/main/java/thredds/filesystem/s3/ControllerS3.java
+++ b/cdm/s3/src/main/java/thredds/filesystem/s3/ControllerS3.java
@@ -121,7 +121,7 @@ public Iterator<MFile> getSubdirs(CollectionConfig mc, boolean recheck) {
         logger.error("Error creating MFile for {} bucket {}", commonPrefix, initialUri.getBucket(), e);
       }
     }
-    return mFiles.iterator();
+    return new FilteredIterator(mc, mFiles.iterator(), true);
   }
 
   @Override