Index: Slim/Player/Playlist.pm
===================================================================
--- Slim/Player/Playlist.pm	(revision 26653)
+++ Slim/Player/Playlist.pm	(working copy)
@@ -911,8 +911,11 @@
 	
 	return undef if !$prefs->get('playlistdir');
 	
+	my $id = $client->id();
+	$id =~ s/://g;
+	
 	return Slim::Utils::Misc::fileURLFromPath(
-		catfile($prefs->get('playlistdir'), sprintf('clientplaylist_%s.m3u', $client->id)));
+		catfile($prefs->get('playlistdir'), "clientplaylist_$id.m3u"));
 }