diff --git a/homeassistant/components/squeezebox/media_player.py b/homeassistant/components/squeezebox/media_player.py
index aaf64c34ddf..c0a6dad7a47 100644
--- a/homeassistant/components/squeezebox/media_player.py
+++ b/homeassistant/components/squeezebox/media_player.py
@@ -185,7 +185,7 @@ async def async_setup_entry(
         {vol.Required(ATTR_OTHER_PLAYER): cv.string},
         "async_sync",
     )
-    platform.async_register_entity_service(SERVICE_UNSYNC, None, "async_unsync")
+    platform.async_register_entity_service(SERVICE_UNSYNC, {}, "async_unsync")
 
     # Start server discovery task if not already running
     entry.async_on_unload(async_at_start(hass, start_server_discovery))