diff --git a/rest_framework_jwt/utils.py b/rest_framework_jwt/utils.py
index c72197bc..e935fa54 100644
--- a/rest_framework_jwt/utils.py
+++ b/rest_framework_jwt/utils.py
@@ -23,7 +23,7 @@ def jwt_get_secret_key(payload=None):
     """
     if api_settings.JWT_GET_USER_SECRET_KEY:
         User = get_user_model()  # noqa: N806
-        user = User.objects.get(pk=payload.get('user_id'))
+        user = User.objects.get(pk=api_settings.JWT_PAYLOAD_GET_USER_ID_HANDLER(payload))
         key = str(api_settings.JWT_GET_USER_SECRET_KEY(user))
         return key
     return api_settings.JWT_SECRET_KEY
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 393c30ab..17589e85 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -4,11 +4,13 @@
 
 import jwt.exceptions
 from django.test import TestCase
+from django.conf import settings
 
 from rest_framework_jwt import utils
 from rest_framework_jwt.compat import get_user_model
 from rest_framework_jwt.settings import api_settings, DEFAULTS
 from tests.models import CustomUserWithoutEmail
+from tests.utils import custom_get_user_id, custom_get_user_secret
 
 User = get_user_model()
 
@@ -82,6 +84,27 @@ def test_jwt_decode_verify_exp(self):
 
         api_settings.JWT_VERIFY_EXPIRATION = True
 
+    def test_jwt_get_secret_key(self):
+        secret = utils.jwt_get_secret_key({'user_id': self.user.pk})
+        self.assertEqual(secret, settings.SECRET_KEY)
+
+    def test_jwt_get_secret_key_customer_secret_getter(self):
+        old = api_settings.JWT_GET_USER_SECRET_KEY
+        api_settings.JWT_GET_USER_SECRET_KEY = custom_get_user_secret
+        secret = utils.jwt_get_secret_key({'user_id': self.user.pk})
+        api_settings.JWT_GET_USER_SECRET_KEY = old
+        self.assertEqual(secret, str(self.user.pk))
+
+    def test_jwt_get_secret_key_customer_id_and_secret_getter(self):
+        old = api_settings.JWT_GET_USER_SECRET_KEY
+        api_settings.JWT_GET_USER_SECRET_KEY = custom_get_user_secret
+        old2 = api_settings.JWT_PAYLOAD_GET_USER_ID_HANDLER
+        api_settings.JWT_PAYLOAD_GET_USER_ID_HANDLER = custom_get_user_id
+        secret = utils.jwt_get_secret_key({'custom_uid': self.user.pk})
+        api_settings.JWT_PAYLOAD_GET_USER_ID_HANDLER = old2
+        api_settings.JWT_GET_USER_SECRET_KEY = old
+        self.assertEqual(secret, str(self.user.pk))
+
 
 class TestAudience(TestCase):
     def setUp(self):
diff --git a/tests/utils.py b/tests/utils.py
index a72529bb..6f742e6f 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -24,3 +24,11 @@ def jwt_response_payload_handler(token, user=None, request=None):
 
 def get_jwt_secret(user):
     return user.jwt_secret
+
+
+def custom_get_user_secret(user):
+    return user.pk
+
+
+def custom_get_user_id(payload):
+    return payload.get('custom_uid', None)