diff --git a/warcprox/bigtable.py b/warcprox/bigtable.py
index e6674a6..cb4671e 100644
--- a/warcprox/bigtable.py
+++ b/warcprox/bigtable.py
@@ -34,6 +34,7 @@ import threading
 import datetime
 import doublethink
 import rethinkdb as r
+from warcprox.dedup import DedupableMixin
 
 class RethinkCaptures:
     """Inserts in batches every 0.5 seconds"""
@@ -215,10 +216,11 @@ class RethinkCaptures:
         if self._timer:
             self._timer.join()
 
-class RethinkCapturesDedup(warcprox.dedup.DedupDb):
+class RethinkCapturesDedup(warcprox.dedup.DedupDb, DedupableMixin):
     logger = logging.getLogger("warcprox.dedup.RethinkCapturesDedup")
 
     def __init__(self, options=warcprox.Options()):
+        DedupableMixin.__init__(self, options)
         self.captures_db = RethinkCaptures(options=options)
         self.options = options
 
@@ -251,5 +253,6 @@ class RethinkCapturesDedup(warcprox.dedup.DedupDb):
         self.captures_db.close()
 
     def notify(self, recorded_url, records):
-        self.captures_db.notify(recorded_url, records)
-
+        if (records and records[0].type == b'response'
+                and self.should_dedup(recorded_url)):
+            self.captures_db.notify(recorded_url, records)