diff --git a/patches/july_2013/p11_update_price_list_currency.py b/patches/july_2013/p11_update_price_list_currency.py
new file mode 100644
index 0000000..887149d
--- /dev/null
+++ b/patches/july_2013/p11_update_price_list_currency.py
@@ -0,0 +1,9 @@
+import webnotes
+
+def execute():
+	for price_list_name in webnotes.conn.sql_list("""select name from `tabPrice List` 
+		where ifnull(currency, '')=''"""):
+			res = webnotes.conn.sql("""select distinct ref_currency from `tabItem Price`
+				where price_list_name=%s""", price_list_name)
+			if res and len(res)==1 and res[0][0]:
+				webnotes.conn.set_value("Price List", price_list_name, "currency", res[0][0])
diff --git a/patches/patch_list.py b/patches/patch_list.py
index 9b6bb0f..b60ca13 100644
--- a/patches/patch_list.py
+++ b/patches/patch_list.py
@@ -262,4 +262,5 @@
 	"patches.july_2013.p08_custom_print_format_net_total_export",
 	"patches.july_2013.p09_remove_website_pyc",
 	"patches.july_2013.p10_change_partner_user_to_website_user",
+	"patches.july_2013.p11_update_price_list_currency",
 ]
\ No newline at end of file