diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 9d1e7b1..e28c53d 100755
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -571,7 +571,7 @@
 execute:frappe.delete_doc_if_exists("Page", "purchase-analytics")
 execute:frappe.delete_doc_if_exists("Page", "stock-analytics")
 execute:frappe.delete_doc_if_exists("Page", "production-analytics")
-erpnext.patches.v11_0.ewaybill_fields_gst_india #2018-11-13 #2019-01-09
+erpnext.patches.v11_0.ewaybill_fields_gst_india #2018-11-13 #2019-01-09 #2019-04-01
 erpnext.patches.v11_0.drop_column_max_days_allowed
 erpnext.patches.v11_0.change_healthcare_desktop_icons
 erpnext.patches.v10_0.update_user_image_in_employee
diff --git a/erpnext/regional/india/setup.py b/erpnext/regional/india/setup.py
index c5498c7..c8a32f8 100644
--- a/erpnext/regional/india/setup.py
+++ b/erpnext/regional/india/setup.py
@@ -93,7 +93,7 @@
 def make_custom_fields(update=True):
 	hsn_sac_field = dict(fieldname='gst_hsn_code', label='HSN/SAC',
 		fieldtype='Data', fetch_from='item_code.gst_hsn_code', insert_after='description',
-		allow_on_submit=1, print_hide=1)
+		allow_on_submit=1, print_hide=1, fetch_if_empty=1)
 	invoice_gst_fields = [
 		dict(fieldname='gst_section', label='GST Details', fieldtype='Section Break',
 			insert_after='language', print_hide=1, collapsible=1),