diff --git a/appdata-sandbox.json b/appdata-sandbox.json
index f1e3163ecd118b4f503698a1f201de4006b54a0a..d8eb02ca9e3fe56cf0fee4d7ef909a0e75a21b97 100755
--- a/appdata-sandbox.json
+++ b/appdata-sandbox.json
@@ -679,6 +679,11 @@
                     "sandbox-path": "/storage/External",
                     "sandbox-flags": [ "bind", "rec" ]
                 },
+                {
+                    "src-path": "/mnt/data/<currentUserId>/userExternal",
+                    "sandbox-path": "/storage/userExternal",
+                    "sandbox-flags": [ "bind", "rec" ]
+                },
                 {
                     "src-path": "/storage/media/<currentUserId>/local/files/.Recent",
                     "sandbox-path": "/storage/Users/<currentUserId>/.Recent",