diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index 059da953470..e987a5ad099 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -886,7 +886,9 @@ class SalesInvoice(SellingController):
 			if data.time_sheet:
 				status = frappe.db.get_value("Timesheet", data.time_sheet, "status")
 				if status not in ["Submitted", "Payslip", "Partially Billed"]:
-					frappe.throw(_("Timesheet {0} is already completed or cancelled").format(data.time_sheet))
+					frappe.throw(
+						_("Timesheet {0} cannot be invoiced in its current state").format(data.time_sheet)
+					)
 
 	def set_pos_fields(self, for_validate=False):
 		"""Set retail related fields from POS Profiles"""