diff --git a/gst/isomp4/qtdemux.c b/gst/isomp4/qtdemux.c
index 77d3272932..c4aa9c5f44 100644
--- a/gst/isomp4/qtdemux.c
+++ b/gst/isomp4/qtdemux.c
@@ -2467,7 +2467,7 @@ qtdemux_parse_piff (GstQTDemux * qtdemux, const guint8 * buffer, gint length,
   const gchar *system_id;
   gboolean uses_sub_sample_encryption = FALSE;
 
-  if (!qtdemux->streams)
+  if (qtdemux->n_streams == 0)
     return;
 
   stream = qtdemux->streams[0];