diff --git a/playlist.c b/playlist.c
index b17a5b197c..d978090927 100644
--- a/playlist.c
+++ b/playlist.c
@@ -1225,7 +1225,7 @@ void playlist_write_file(playlist_t *playlist)
       JSONContext context = {0};
       context.writer      = JSON_Writer_Create(NULL);
       context.file        = file;
-      char label_display_mode[4];
+      char label_display_mode[4] = {0};
 
       if (!context.writer)
       {