[fix] Patch fail (#11623)

diff --git a/erpnext/patches/v9_1/create_issue_opportunity_type.py b/erpnext/patches/v9_1/create_issue_opportunity_type.py
index b5070b0..af7ee5d 100644
--- a/erpnext/patches/v9_1/create_issue_opportunity_type.py
+++ b/erpnext/patches/v9_1/create_issue_opportunity_type.py
@@ -30,5 +30,5 @@
 
 	# fixtures
 	for name in ('Hub', _('Sales'), _('Support'), _('Maintenance')):
-		if not frappe.db.exists('Opportunity', name):
+		if not frappe.db.exists('Opportunity Type', name):
 			frappe.get_doc(dict(doctype = 'Opportunity Type', name=name)).insert()