diff --git a/erpnext/patches/jan_mar_2012/subcon_default_val.py b/erpnext/patches/jan_mar_2012/subcon_default_val.py
new file mode 100644
index 0000000..c0bee4c
--- /dev/null
+++ b/erpnext/patches/jan_mar_2012/subcon_default_val.py
@@ -0,0 +1,7 @@
+def execute():
+	import webnotes
+	webnotes.conn.sql("""
+		update `tabDocField` set `default` = 'No' 
+		where parent in ('Purchase Order', 'Purchase Receipt') 
+		and fieldname = 'is_subcontracted'
+	""")
diff --git a/erpnext/patches/patch_list.py b/erpnext/patches/patch_list.py
index cbe10c7..9430038 100644
--- a/erpnext/patches/patch_list.py
+++ b/erpnext/patches/patch_list.py
@@ -74,5 +74,10 @@
 		'patch_module': 'patches.jan_mar_2012',
 		'patch_file': 'account_type_patch',
 		'description': 'mentioed account type for some tax accounts'
+	},
+	{
+		'patch_module': 'patches.jan_mar_2012',
+		'patch_file': 'subcon_default_val',
+		'description': 'Default value of is_subcontracted in PO, PR is No'
 	}
 ]