diff --git a/pokedex/tests/test_docs.py b/pokedex/tests/test_docs.py
new file mode 100644
index 0000000..3cd5f68
--- /dev/null
+++ b/pokedex/tests/test_docs.py
@@ -0,0 +1,22 @@
+import os
+import re
+
+from pokedex.db.tables import mapped_classes
+
+def test_main_tables():
+    """Check that tables.py and main-tables.rst are in sync: every table should
+    be documented, and every documented table should exist."""
+
+    main_tables_path = os.path.join(os.path.dirname(__file__), '../../doc/main-tables.rst')
+
+    with open(main_tables_path) as f:
+        doc_class_names = set(
+            re.findall(r'^\.\. dex-table:: (\w+)$', f.read(), re.MULTILINE)
+        )
+
+    mapped_class_names = set(cls.__name__ for cls in mapped_classes)
+
+    # EXTRA ITEMS IN THE LEFT SET: tables defined but not documented
+    # EXTRA ITEMS IN THE RIGHT SET: tables documented but not defined
+    assert mapped_class_names == doc_class_names
+