diff --git a/api/helper.py b/api/helper.py
index eb32373..ed3ea28 100755
--- a/api/helper.py
+++ b/api/helper.py
@@ -25,7 +25,7 @@ def check_otp(name, realm, token):
     response = requests.post(
         "{OTP_SERVER}{OTP_VERIFY_ENDPOINT}".format(
             OTP_SERVER=env_vars.get("OTP_SERVER", ""),
-            OTP_VERIFY_ENDPOINT=env_vars.get("OTP_VERIFY_ENDPOINT", "verify"),
+            OTP_VERIFY_ENDPOINT=env_vars.get("OTP_VERIFY_ENDPOINT", "verify/"),
         ),
         json=data,
     )