diff --git a/metsrw/fsentry.py b/metsrw/fsentry.py
index 6ca5107..9b82f7e 100644
--- a/metsrw/fsentry.py
+++ b/metsrw/fsentry.py
@@ -112,6 +112,7 @@ class FSEntry(DependencyPossessor):
     def __init__(
         self,
         path=None,
+        fileid=None,
         label=None,
         use="original",
         type=u"Item",
@@ -138,6 +139,7 @@ def __init__(
                 self.path = path
         if label is None and path is not None:
             label = os.path.basename(path)
+        self.fileid = fileid
         self.label = label
         self.use = use
         self.type = six.text_type(type)
@@ -204,6 +206,8 @@ def file_id(self):
                 "No FILEID: File %s does not have file_uuid set" % self.path
             )
         if self.is_aip:
+            if self.fileid:
+                return self.fileid
             return os.path.splitext(os.path.basename(self.path))[0]
         return utils.FILE_ID_PREFIX + self.file_uuid