diff --git a/erpnext/patches/may_2012/reload_sales_invoice_pf.py b/erpnext/patches/may_2012/reload_sales_invoice_pf.py
new file mode 100644
index 0000000..63acbed
--- /dev/null
+++ b/erpnext/patches/may_2012/reload_sales_invoice_pf.py
@@ -0,0 +1,16 @@
+def execute():
+	import webnotes
+	import webnotes.modules
+	res = webnotes.conn.sql("""\
+		select module, name, standard from `tabPrint Format`
+		where name like 'Sales Invoice%'""", as_dict=1)
+	for r in res:
+		if r.get('standard')=='Yes' and \
+				r.get('name') in [
+					'Sales Invoice Classic',
+					'Sales Invoice Spartan',
+					'Sales Invoice Modern'
+				]:
+			print r.get('name')
+			webnotes.modules.reload_doc(r.get('module'), 'Print Format', r.get('name'))		
+			
\ No newline at end of file
diff --git a/erpnext/patches/patch_list.py b/erpnext/patches/patch_list.py
index 6f2f8ce..5a82d42 100644
--- a/erpnext/patches/patch_list.py
+++ b/erpnext/patches/patch_list.py
@@ -347,5 +347,10 @@
 		'patch_file': 'page_role_series_fix',
 		'description': 'reset series of page role at max'
 	},
+	{
+		'patch_module': 'patches.may_2012',
+		'patch_file': 'reload_sales_invoice_pf',
+		'description': 'Reload sales invoice print formats'
+	},
 
 ]