diff --git a/src/mergerfs_webui.cpp b/src/mergerfs_webui.cpp
index 3297c01f..0f42f848 100644
--- a/src/mergerfs_webui.cpp
+++ b/src/mergerfs_webui.cpp
@@ -219,7 +219,9 @@ _valid_fs_type(const fs::path    &path_,
 {
   if(not (str::startswith(path_,"/mnt")   or
           str::startswith(path_,"/media") or
+          str::startswith(path_,"/opt") or
           str::startswith(path_,"/srv")))
+
     return false;
 
   IERT("ext2");