key fix in demo setup completion (#11980)

diff --git a/erpnext/demo/setup/setup_data.py b/erpnext/demo/setup/setup_data.py
index c7babc0..64a04d5 100644
--- a/erpnext/demo/setup/setup_data.py
+++ b/erpnext/demo/setup/setup_data.py
@@ -55,7 +55,7 @@
 			"fy_start_date": "2015-01-01",
 			"fy_end_date": "2015-12-31",
 			"bank_account": "National Bank",
-			"domain": domain,
+			"domains": [domain],
 			"company_name": data.get(domain).get('company_name'),
 			"chart_of_accounts": "Standard",
 			"company_abbr": ''.join([d[0] for d in data.get(domain).get('company_name').split()]).upper(),