diff --git a/tests/test_schemas.py b/tests/test_schemas.py
index 1aad5d1de..230f8f012 100644
--- a/tests/test_schemas.py
+++ b/tests/test_schemas.py
@@ -1358,4 +1358,4 @@ def test_schema_handles_exception():
     response = schema_view(request)
     response.render()
     assert response.status_code == 403
-    assert "You do not have permission to perform this action." in str(response.content)
+    assert b"You do not have permission to perform this action." in response.content