diff --git a/erpnext/support/doctype/issue/issue.json b/erpnext/support/doctype/issue/issue.json
index bd87f22..bb43bb3 100644
--- a/erpnext/support/doctype/issue/issue.json
+++ b/erpnext/support/doctype/issue/issue.json
@@ -17,7 +17,7 @@
    "hidden": 0, 
    "label": "Series", 
    "no_copy": 1, 
-   "options": "SUP-", 
+   "options": "ISS-", 
    "permlevel": 0, 
    "print_hide": 1, 
    "reqd": 0, 
@@ -217,7 +217,7 @@
  ], 
  "icon": "icon-ticket", 
  "idx": 1, 
- "modified": "2014-11-28 11:38:35.978149", 
+ "modified": "2014-11-28 12:11:31.275053", 
  "modified_by": "Administrator", 
  "module": "Support", 
  "name": "Issue",