diff --git a/cas_wrapper.py b/cas_wrapper.py
index 0284389..fd3c39e 100644
--- a/cas_wrapper.py
+++ b/cas_wrapper.py
@@ -142,12 +142,14 @@ class CasWrapper:
         self,
         local_path: str,
         use_hash: bool = False,
+        return_json: bool = False,
     ) -> bool:
         is_authenticated = False
         with self as cas:
             try:
                 is_authenticated = cas.authenticate(local_path,
-                                                    use_hash=use_hash)
+                                                    use_hash=use_hash,
+                                                    return_json=return_json)
             # we can fall with ProcessExecutionError,
             # because source can be not notarized
             except ProcessExecutionError: