diff --git a/homeassistant/components/kef/media_player.py b/homeassistant/components/kef/media_player.py
index 2a227212006..14e6e6b406f 100644
--- a/homeassistant/components/kef/media_player.py
+++ b/homeassistant/components/kef/media_player.py
@@ -67,7 +67,7 @@ SERVICE_LOW_HZ = "set_low_hz"
 SERVICE_SUB_DB = "set_sub_db"
 SERVICE_UPDATE_DSP = "update_dsp"
 
-DSP_SCAN_INTERVAL = 3600
+DSP_SCAN_INTERVAL = timedelta(seconds=3600)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
     {