diff --git a/code/ryzom/client/src/interface_v3/music_player.cpp b/code/ryzom/client/src/interface_v3/music_player.cpp
index b809a3569..6088a3e52 100644
--- a/code/ryzom/client/src/interface_v3/music_player.cpp
+++ b/code/ryzom/client/src/interface_v3/music_player.cpp
@@ -116,7 +116,7 @@ void CMusicPlayer::play (sint index)
 	if(!SoundMngr)
 		return;
 
-	if (index >= 0 && index < _Songs.size())
+	if (index >= 0 && index < (sint)_Songs.size())
 	{
 		if (_State == Paused)
 			stop();