diff --git a/core/src/main/java/org/apache/accumulo/core/Constants.java b/core/src/main/java/org/apache/accumulo/core/Constants.java
index c31e205585a..1caf157e90c 100644
--- a/core/src/main/java/org/apache/accumulo/core/Constants.java
+++ b/core/src/main/java/org/apache/accumulo/core/Constants.java
@@ -104,6 +104,7 @@ public class Constants {
   public static final String BULK_PREFIX = "b-";
   public static final String BULK_RENAME_FILE = "renames.json";
   public static final String BULK_LOAD_MAPPING = "loadmap.json";
+  public static final String BULK_WORKING_PREFIX = "accumulo-bulk-";
 
   public static final String CLONE_PREFIX = "c-";
   public static final byte[] CLONE_PREFIX_BYTES = CLONE_PREFIX.getBytes(UTF_8);
diff --git a/core/src/main/java/org/apache/accumulo/core/clientImpl/bulk/BulkImport.java b/core/src/main/java/org/apache/accumulo/core/clientImpl/bulk/BulkImport.java
index 483fca52cad..e8b893299bb 100644
--- a/core/src/main/java/org/apache/accumulo/core/clientImpl/bulk/BulkImport.java
+++ b/core/src/main/java/org/apache/accumulo/core/clientImpl/bulk/BulkImport.java
@@ -534,7 +534,7 @@ public static List<FileStatus> filterInvalid(FileStatus[] files) {
         continue;
       }
 
-      if (FileOperations.getBulkWorkingFiles().contains(fname)) {
+      if (FileOperations.isBulkWorkingFile(fname)) {
         log.debug("{} is an internal working file, ignoring.", fileStatus.getPath());
         continue;
       }
diff --git a/core/src/main/java/org/apache/accumulo/core/file/FileOperations.java b/core/src/main/java/org/apache/accumulo/core/file/FileOperations.java
index db82b0d1493..6db7384fc61 100644
--- a/core/src/main/java/org/apache/accumulo/core/file/FileOperations.java
+++ b/core/src/main/java/org/apache/accumulo/core/file/FileOperations.java
@@ -53,6 +53,13 @@ public abstract class FileOperations {
       Set.of(Constants.BULK_LOAD_MAPPING, Constants.BULK_RENAME_FILE,
           FileOutputCommitter.SUCCEEDED_FILE_NAME, HADOOP_JOBHISTORY_LOCATION);
 
+  public static boolean isBulkWorkingFile(String fileName) {
+    if (fileName.startsWith(Constants.BULK_WORKING_PREFIX)) {
+      return true;
+    }
+    return bulkWorkingFiles.contains(fileName);
+  }
+
   public static Set<String> getValidExtensions() {
     return validExtensions;
   }