diff --git a/drf_spectacular/contrib/django_oauth_toolkit.py b/drf_spectacular/contrib/django_oauth_toolkit.py
index 9b0019bc..d60c509f 100644
--- a/drf_spectacular/contrib/django_oauth_toolkit.py
+++ b/drf_spectacular/contrib/django_oauth_toolkit.py
@@ -37,8 +37,11 @@ def get_security_definition(self, auto_schema):
                 flows[flow_type]['tokenUrl'] = spectacular_settings.OAUTH2_TOKEN_URL
             if spectacular_settings.OAUTH2_REFRESH_URL:
                 flows[flow_type]['refreshUrl'] = spectacular_settings.OAUTH2_REFRESH_URL
-            scope_backend = get_scopes_backend()
-            flows[flow_type]['scopes'] = scope_backend.get_all_scopes()
+            if spectacular_settings.OAUTH2_SCOPES:
+                flows[flow_type]['scopes'] = spectacular_settings.OAUTH2_SCOPES
+            else:
+                scope_backend = get_scopes_backend()
+                flows[flow_type]['scopes'] = scope_backend.get_all_scopes()
 
         return {
             'type': 'oauth2',
diff --git a/tests/contrib/test_oauth_toolkit.py b/tests/contrib/test_oauth_toolkit.py
index 20fe5062..7fc79541 100644
--- a/tests/contrib/test_oauth_toolkit.py
+++ b/tests/contrib/test_oauth_toolkit.py
@@ -133,3 +133,43 @@ def test_oauth2_toolkit_scopes_backend(no_warnings):
     assert 'implicit' in oauth2['flows']
     flow = oauth2['flows']['implicit']
     assert 'test_backend_scope' in flow['scopes']
+
+
+@mock.patch(
+    'drf_spectacular.settings.spectacular_settings.OAUTH2_SCOPES',
+    {"read": "Read scope", "burn": "Burn scope"},
+)
+@mock.patch(
+    'drf_spectacular.settings.spectacular_settings.OAUTH2_FLOWS',
+    ['implicit']
+)
+@mock.patch(
+    'drf_spectacular.settings.spectacular_settings.OAUTH2_REFRESH_URL',
+    'http://127.0.0.1:8000/o/refresh'
+)
+@mock.patch(
+    'drf_spectacular.settings.spectacular_settings.OAUTH2_AUTHORIZATION_URL',
+    'http://127.0.0.1:8000/o/authorize'
+)
+@mock.patch(
+    'oauth2_provider.settings.oauth2_settings.SCOPES',
+    {"read": "Reading scope", "write": "Writing scope", "extra_scope": "Extra Scope"},
+)
+@mock.patch(
+    'oauth2_provider.settings.oauth2_settings.DEFAULT_SCOPES',
+    ["read", "write"]
+)
+@pytest.mark.contrib('oauth2_provider')
+def test_oauth2_toolkit_custom_scopes(no_warnings):
+    router = routers.SimpleRouter()
+    router.register('TokenHasReadWriteScope', TokenHasReadWriteScopeViewset, basename="x1")
+
+    urlpatterns = [
+        *router.urls,
+        path('o/', include('oauth2_provider.urls', namespace='oauth2_provider')),
+    ]
+    schema = generate_schema(None, patterns=urlpatterns)
+
+    assert schema['components']['securitySchemes']['oauth2']['flows']['implicit']['scopes'] == {
+        'burn': 'Burn scope', 'read': 'Read scope'
+    }