diff --git a/python_apps/pypo/liquidsoap_scripts/ls_script.liq b/python_apps/pypo/liquidsoap_scripts/ls_script.liq
index 9a52ace46..58a91909b 100644
--- a/python_apps/pypo/liquidsoap_scripts/ls_script.liq
+++ b/python_apps/pypo/liquidsoap_scripts/ls_script.liq
@@ -60,7 +60,7 @@ create_source()
 create_source()
 create_source()
 
-queue = add(!sources)
+queue = add(!sources, normalize=false)
 
 queue = audio_to_stereo(id="queue_src", queue)
 queue = amplify(1., override="replay_gain", queue)