diff --git a/frappe/__init__.py b/frappe/__init__.py
index b5bb70caae..f611ce705d 100644
--- a/frappe/__init__.py
+++ b/frappe/__init__.py
@@ -13,7 +13,7 @@ import os, sys, importlib, inspect, json
 from .exceptions import *
 from .utils.jinja import get_jenv, get_template, render_template
 
-__version__ = "7.0.17"
+__version__ = "7.0.18"
 
 local = Local()
 
diff --git a/frappe/model/document.py b/frappe/model/document.py
index 83f5196d35..c4049b8524 100644
--- a/frappe/model/document.py
+++ b/frappe/model/document.py
@@ -424,12 +424,12 @@ class Document(BaseDocument):
 		has_access_to = self.get_permlevel_access('read')
 
 		for df in self.meta.fields:
-			if not df.permlevel in has_access_to:
+			if df.permlevel and not df.permlevel in has_access_to:
 				self.set(df.fieldname, None)
 
 		for table_field in self.meta.get_table_fields():
-			for df in frappe.get_meta(table_field.options):
-				if not df.permlevel in has_access_to:
+			for df in frappe.get_meta(table_field.options).fields or []:
+				if df.permlevel and not df.permlevel in has_access_to:
 					for child in self.get(table_field.fieldname) or []:
 						child.set(df.fieldname, None)