diff --git a/flask_httpauth.py b/flask_httpauth.py
index 13df014..a3d38da 100644
--- a/flask_httpauth.py
+++ b/flask_httpauth.py
@@ -66,9 +66,11 @@ def __init__(self):
 
     def hash_password(self, f):
         self.hash_password_callback = f
+        return f
 
     def verify_password(self, f):
         self.verify_password_callback = f
+        return f
 
     def authenticate_header(self):
         return 'Basic realm="' + self.realm + '"'