diff --git a/homeassistant/components/squeezebox/media_player.py b/homeassistant/components/squeezebox/media_player.py
index d8574223307..8e03763b709 100644
--- a/homeassistant/components/squeezebox/media_player.py
+++ b/homeassistant/components/squeezebox/media_player.py
@@ -545,5 +545,5 @@ class SqueezeBoxDevice(MediaPlayerDevice):
         all_params = [command]
         if parameters:
             for parameter in parameters:
-                all_params.append(urllib.parse.quote(parameter, safe=":=/?"))
+                all_params.append(urllib.parse.quote(parameter, safe="+:=/?"))
         return self.async_query(*all_params)