diff --git a/zerver/data_import/import_util.py b/zerver/data_import/import_util.py
index 7e49fb5585..dec3ca378c 100644
--- a/zerver/data_import/import_util.py
+++ b/zerver/data_import/import_util.py
@@ -87,6 +87,10 @@ def build_zerver_realm(
     )
     realm_dict = model_to_dict(realm)
     realm_dict["date_created"] = time
+    # These fields are supposed to be generated upon import.
+    del realm_dict["uuid"]
+    del realm_dict["uuid_owner_secret"]
+
     return [realm_dict]
 
 
diff --git a/zerver/tests/test_slack_importer.py b/zerver/tests/test_slack_importer.py
index bc1209b576..c278e94ed5 100644
--- a/zerver/tests/test_slack_importer.py
+++ b/zerver/tests/test_slack_importer.py
@@ -181,6 +181,8 @@ class SlackImporter(ZulipTestCase):
         self.assertEqual(test_zerver_realm_dict["string_id"], realm_subdomain)
         self.assertEqual(test_zerver_realm_dict["name"], realm_subdomain)
         self.assertEqual(test_zerver_realm_dict["date_created"], time)
+        self.assertNotIn("uuid", test_zerver_realm_dict)
+        self.assertNotIn("uuid_owner_secret", test_zerver_realm_dict)
 
     @responses.activate
     def test_check_token_access(self) -> None: