diff --git a/src/htsp_server.c b/src/htsp_server.c
index f0728cfb..97fa950d 100644
--- a/src/htsp_server.c
+++ b/src/htsp_server.c
@@ -1521,7 +1521,7 @@ htsp_method_file_open(htsp_connection_t *htsp, htsmsg_t *in)
     int fd = imagecache_open(atoi(s2));
     if (fd <= 0)
       return htsp_error("failed to open image");
-    return htsp_file_open(htsp, NULL, fd);
+    return htsp_file_open(htsp, str, fd);
 
   } else {
     return htsp_error("Unknown file");