diff --git a/r2/r2/lib/normalized_hot.py b/r2/r2/lib/normalized_hot.py
index 7182ee3f5..ca1c85f15 100644
--- a/r2/r2/lib/normalized_hot.py
+++ b/r2/r2/lib/normalized_hot.py
@@ -27,6 +27,7 @@ from r2.lib import _normalized_hot
 
 from r2.lib._normalized_hot import get_hot # pull this into our namespace
 
+@memoize('normalize_hot', time = g.page_cache_time)
 def normalized_hot_cached(sr_ids, obey_age_limit=True):
     return _normalized_hot.normalized_hot_cached(sr_ids, obey_age_limit)