diff --git a/r2/r2/models/traffic.py b/r2/r2/models/traffic.py
index 297f795bd..ebf27131f 100644
--- a/r2/r2/models/traffic.py
+++ b/r2/r2/models/traffic.py
@@ -523,7 +523,6 @@ class TargetedClickthroughsByCodename(Base):
         return total_by_codename(cls, codenames)
 
     @classmethod
-    @memoize_traffic(time=3600)
     def campaign_history(cls, codenames, start, stop):
         return campaign_history(cls, codenames, start, stop)
 
@@ -605,7 +604,6 @@ class TargetedImpressionsByCodename(Base):
         return total_by_codename(cls, codenames)
 
     @classmethod
-    @memoize_traffic(time=3600)
     def campaign_history(cls, codenames, start, stop):
         return campaign_history(cls, codenames, start, stop)