diff --git a/frappe/custom/doctype/customize_form/customize_form.py b/frappe/custom/doctype/customize_form/customize_form.py
index 2c688a20d1..72e5c34bc6 100644
--- a/frappe/custom/doctype/customize_form/customize_form.py
+++ b/frappe/custom/doctype/customize_form/customize_form.py
@@ -46,7 +46,8 @@ class CustomizeForm(Document):
 		'depends_on': 'Data',
 		'description': 'Text',
 		'default': 'Text',
-		'precision': 'Select'
+		'precision': 'Select',
+		'read_only': 'Check'
 	}
 
 	allowed_fieldtype_change = (('Currency', 'Float', 'Percent'), ('Small Text', 'Data'),
@@ -140,6 +141,12 @@ class CustomizeForm(Document):
 					elif property == "unique":
 						update_db = True
 
+					elif (property == "read_only" and cint(df.get("read_only"))==0
+						and frappe.db.get_value("DocField", {"parent": self.doc_type, "fieldname": df.fieldname}, "read_only")==1):
+						# if docfield has read_only checked and user is trying to make it editable, don't allow it
+						frappe.msgprint(_("You cannot unset 'Read Only' for field {0}").format(df.label))
+						continue
+
 					self.make_property_setter(property=property, value=df.get(property),
 						property_type=self.docfield_properties[property], fieldname=df.fieldname)
 
diff --git a/frappe/custom/doctype/customize_form_field/customize_form_field.json b/frappe/custom/doctype/customize_form_field/customize_form_field.json
index ac3725240c..60cd527a24 100644
--- a/frappe/custom/doctype/customize_form_field/customize_form_field.json
+++ b/frappe/custom/doctype/customize_form_field/customize_form_field.json
@@ -334,6 +334,28 @@
    "unique": 0, 
    "width": "50px"
   }, 
+  {
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "fieldname": "read_only", 
+   "fieldtype": "Check", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "in_filter": 0, 
+   "in_list_view": 0, 
+   "label": "Read Only", 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "read_only": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "unique": 0
+  }, 
   {
    "allow_on_submit": 0, 
    "bold": 0, 
@@ -687,7 +709,7 @@
  "is_submittable": 0, 
  "issingle": 0, 
  "istable": 1, 
- "modified": "2015-09-04 02:49:57.129449", 
+ "modified": "2015-10-01 07:59:15.490247", 
  "modified_by": "Administrator", 
  "module": "Custom", 
  "name": "Customize Form Field",