--- a/src/validate-sound.c
+++ b/src/validate-sound.c
@@ -234,7 +234,7 @@ flatpak_get_bwrap (void)
 static int
 rerun_in_sandbox (int input_fd)
 {
-  const char * const usrmerged_dirs[] = { "bin", "lib32", "lib64", "lib", "sbin" };
+  const char * const usrmerged_dirs[] = { };
   int i;
   g_autoptr(GPtrArray) args = g_ptr_array_new_with_free_func (g_free);
   char validate_sound[PATH_MAX + 1];
@@ -255,8 +255,7 @@ rerun_in_sandbox (int input_fd)
             "--tmpfs", "/tmp",
             "--proc", "/proc",
             "--dev", "/dev",
-            "--ro-bind", "/usr", "/usr",
-            "--ro-bind-try", "/etc/ld.so.cache", "/etc/ld.so.cache",
+            "--ro-bind", "@storeDir@", "@storeDir@",
             "--ro-bind", validate_sound, validate_sound,
             NULL);
 
@@ -299,6 +298,8 @@ rerun_in_sandbox (int input_fd)
   if (g_getenv ("G_MESSAGES_PREFIXED"))
     add_args (args, "--setenv", "G_MESSAGES_PREFIXED", g_getenv ("G_MESSAGES_PREFIXED"), NULL);
 
+  if (g_getenv ("GST_PLUGIN_SYSTEM_PATH_1_0"))
+    add_args (args, "--setenv", "GST_PLUGIN_SYSTEM_PATH_1_0", g_getenv ("GST_PLUGIN_SYSTEM_PATH_1_0"), NULL);
 
   arg_input_fd = g_strdup_printf ("%d", input_fd);
   add_args (args, validate_sound, "--fd", arg_input_fd, NULL);