diff --git a/util/config/test/test_schema.py b/util/config/test/test_schema.py
new file mode 100644
index 000000000..d7547a5cf
--- /dev/null
+++ b/util/config/test/test_schema.py
@@ -0,0 +1,7 @@
+from config import DefaultConfig
+from util.config.schema import CONFIG_SCHEMA
+
+def test_ensure_schema_defines_all_fields():
+  for key in vars(DefaultConfig):
+    assert key in CONFIG_SCHEMA['properties'], "Property `%s` is missing from config schema" % key
+