diff --git a/src/mergerfs_webui.cpp b/src/mergerfs_webui.cpp
index e39f99f4..7de07ede 100644
--- a/src/mergerfs_webui.cpp
+++ b/src/mergerfs_webui.cpp
@@ -218,11 +218,11 @@ bool
 _valid_fs_type(const fs::path    &path_,
                const std::string &type_)
 {
-  if(not (str::startswith(path_,"/mnt")   or
-          str::startswith(path_,"/media") or
-          str::startswith(path_,"/opt")   or
-          str::startswith(path_,"/tmp")   or
-          str::startswith(path_,"/srv")))
+  if(not (str::startswith(path_,"/mnt/")   or
+          str::startswith(path_,"/media/") or
+          str::startswith(path_,"/opt/")   or
+          str::startswith(path_,"/tmp/")   or
+          str::startswith(path_,"/srv/")))
     return false;
 
   IERT("ext2");