diff --git a/server/szurubooru/db/post.py b/server/szurubooru/db/post.py
index 2d9c50d3..9717f2fa 100644
--- a/server/szurubooru/db/post.py
+++ b/server/szurubooru/db/post.py
@@ -1,4 +1,4 @@
-from sqlalchemy import Column, Integer, DateTime, String, ForeignKey
+from sqlalchemy import Column, Integer, DateTime, String, ForeignKey, table
 from sqlalchemy.orm import relationship, column_property
 from sqlalchemy.sql.expression import func, select
 from szurubooru.db.base import Base
@@ -60,7 +60,7 @@ class Post(Base):
     tag_count = column_property(
         select([func.count('1')])
         .where(PostTag.post_id == post_id) \
-        .correlate('Post'))
+        .correlate(table('Post')))
 
     # TODO: wire these
     fav_count = Column('auto_fav_count', Integer, nullable=False, default=0)
diff --git a/server/szurubooru/db/tag.py b/server/szurubooru/db/tag.py
index 21553ebb..287eea64 100644
--- a/server/szurubooru/db/tag.py
+++ b/server/szurubooru/db/tag.py
@@ -1,4 +1,4 @@
-from sqlalchemy import Column, Integer, DateTime, String, ForeignKey
+from sqlalchemy import Column, Integer, DateTime, String, ForeignKey, table
 from sqlalchemy.orm import relationship, column_property
 from sqlalchemy.sql.expression import func, select
 from szurubooru.db.base import Base
@@ -57,7 +57,7 @@ class Tag(Base):
     post_count = column_property(
         select([func.count('Post.post_id')]) \
         .where(PostTag.tag_id == tag_id) \
-        .correlate('Tag'))
+        .correlate(table('Tag')))
 
     first_name = column_property(
         select([TagName.name]) \
diff --git a/server/szurubooru/tests/search/test_tag_search_config.py b/server/szurubooru/tests/search/test_tag_search_config.py
index e9fbdacc..1bb2a516 100644
--- a/server/szurubooru/tests/search/test_tag_search_config.py
+++ b/server/szurubooru/tests/search/test_tag_search_config.py
@@ -43,11 +43,11 @@ def test_filter_by_creation_time(
         verify_unpaged, session, tag_factory, input, expected_tag_names):
     tag1 = tag_factory(names=['t1'])
     tag2 = tag_factory(names=['t2'])
-    tat3 = tag_factory(names=['t3'])
+    tag3 = tag_factory(names=['t3'])
     tag1.creation_time = datetime.datetime(2014, 1, 1)
     tag2.creation_time = datetime.datetime(2014, 6, 1)
-    tat3.creation_time = datetime.datetime(2015, 1, 1)
-    session.add_all([tag1, tag2, tat3])
+    tag3.creation_time = datetime.datetime(2015, 1, 1)
+    session.add_all([tag1, tag2, tag3])
     verify_unpaged(input, expected_tag_names)
 
 @pytest.mark.parametrize('input,expected_tag_names', [
diff --git a/server/szurubooru/util/tags.py b/server/szurubooru/util/tags.py
index 593282b9..7fa5126e 100644
--- a/server/szurubooru/util/tags.py
+++ b/server/szurubooru/util/tags.py
@@ -1,6 +1,6 @@
 import datetime
-import os
 import json
+import os
 import re
 import sqlalchemy
 from szurubooru import config, db, errors