diff --git a/erpnext/patches/4_0/validate_v3_patch.py b/erpnext/patches/4_0/validate_v3_patch.py
index 5041a81..21258b6 100644
--- a/erpnext/patches/4_0/validate_v3_patch.py
+++ b/erpnext/patches/4_0/validate_v3_patch.py
@@ -6,7 +6,6 @@
 
 def execute():
 	from frappe.modules.patch_handler import executed
-	last_v3_patch = 'patches.1401.fix_planned_qty'
+	last_v3_patch = 'patches.1401.fix_pos_outstanding'
 	if not executed(last_v3_patch):
 		raise Exception, "site not ready to migrate to version 4"
-	
\ No newline at end of file