diff --git a/oidc_provider/lib/utils/common.py b/oidc_provider/lib/utils/common.py
index 65157bb..1f0626f 100644
--- a/oidc_provider/lib/utils/common.py
+++ b/oidc_provider/lib/utils/common.py
@@ -110,7 +110,7 @@ def default_after_end_session_hook(
 def default_idtoken_processing_hook(
         id_token, user, token, request, **kwargs):
     """
-    Hook for modifying `id_token` just before serialization.
+    Hook to perform some additional actions to `id_token` dictionary just before serialization.
 
     :param id_token: dictionary contains values that going to be serialized into `id_token`
     :type id_token: dict