diff --git a/erpnext/manufacturing/doctype/production_plan/production_plan.py b/erpnext/manufacturing/doctype/production_plan/production_plan.py
index 06f238a..3a77e2f 100644
--- a/erpnext/manufacturing/doctype/production_plan/production_plan.py
+++ b/erpnext/manufacturing/doctype/production_plan/production_plan.py
@@ -505,7 +505,7 @@
 	total_qty = row['qty']
 
 	required_qty = 0
-	if ignore_existing_ordered_qty or bin_dict.get("projected_qty") < 0:
+	if ignore_existing_ordered_qty or bin_dict.get("projected_qty", 0) < 0:
 		required_qty = total_qty
 	elif total_qty > bin_dict.get("projected_qty"):
 		required_qty = total_qty - bin_dict.get("projected_qty")