diff --git a/odm_sdk/files_util.py b/odm_sdk/files_util.py
index 51f14698..2d727073 100644
--- a/odm_sdk/files_util.py
+++ b/odm_sdk/files_util.py
@@ -630,4 +630,4 @@ def load_info(self, accessions):
     def search_files(self, accession):
         return self.invoke('searchFiles',
                            accession,  # type: str
-                           {}, 100, 0, None, False)
+                           {}, [], 100, 0, None, False)