diff --git a/django/core/db/backends/postgresql.py b/django/core/db/backends/postgresql.py
index c650660ad8..a4ce5b39ee 100644
--- a/django/core/db/backends/postgresql.py
+++ b/django/core/db/backends/postgresql.py
@@ -174,8 +174,8 @@ DATA_TYPES = {
     'NullBooleanField':  'boolean',
     'OneToOneField':     'integer',
     'PhoneNumberField':  'varchar(20)',
-    'PositiveIntegerField': 'integer CHECK (%(column)s >= 0)',
-    'PositiveSmallIntegerField': 'smallint CHECK (%(column)s >= 0)',
+    'PositiveIntegerField': 'integer CHECK ("%(column)s" >= 0)',
+    'PositiveSmallIntegerField': 'smallint CHECK ("%(column)s" >= 0)',
     'SlugField':         'varchar(50)',
     'SmallIntegerField': 'smallint',
     'TextField':         'text',