diff --git a/frappe/model/db_query.py b/frappe/model/db_query.py
index e7a8465d54..c73fa5ea09 100644
--- a/frappe/model/db_query.py
+++ b/frappe/model/db_query.py
@@ -172,7 +172,7 @@ class DatabaseQuery(object):
 		fields = []
 
 		for field in self.fields:
-			if (field.strip().startswith(("`", "*")) or "(" in field):
+			if field.strip().startswith(("`", "*", '"', "'")) or "(" in field:
 				fields.append(field)
 			elif "as" in field.lower().split(" "):
 				col, _, new = field.split()[-3:]