diff --git a/config/cache_durations.py b/config/cache_durations.py
index 8d55502..afe0c18 100644
--- a/config/cache_durations.py
+++ b/config/cache_durations.py
@@ -1,12 +1,17 @@
+# gallery/models/album.py
 ALBUM_PHOTO_DURATION = 60 * 60  # 1 hour
 ALBUM_PHOTO_VIEWS_DURATION = 60 * 5  # 5 min
 
+# gallery/views/album.py
 ALBUM_LIST_PAGE_DURATION = 60 * 5  # 5 min
 
+# gallery/templatetags/image_tags.py
 PHOTO_MD_IMAGE_DATA_DURATION = 60 * 60 * 24  # 1 day
 
+# gallery/templatetags/top_tags.py
 LAST_ALBUMS_DURATION = 60 * 60  # 1 hour
 TOP_PHOTOS_DURATION = 60 * 60  # 1 hour
 RANDOM_FAVORITES_DURATION = 60 * 60  # 1 hour
 
+# gallery/templatetags/gallery_stats.py
 GALLERY_STATS_DURATION = 60 * 60 * 24  # 1 day