diff --git a/AC/API_server/auth.py b/AC/API_server/auth.py
index 5dc42ca..055dd2b 100644
--- a/AC/API_server/auth.py
+++ b/AC/API_server/auth.py
@@ -10,7 +10,7 @@ def verify_access_token(access_token):
   try:
     decoded_token = jwt.decode(access_token, public_key,
                                issuer = ISSUER,
-                               algorithm = 'RS256')
+                               algorithms = 'RS256')
   except (jwt.exceptions.InvalidTokenError,
           jwt.exceptions.InvalidSignatureError,
           jwt.exceptions.InvalidIssuerError,