diff --git a/tools/update-metadata.lua b/tools/update-metadata.lua
index 352af567728d..3dca0bc1d2d6 100755
--- a/tools/update-metadata.lua
+++ b/tools/update-metadata.lua
@@ -12,6 +12,18 @@ local _ = require("gettext")
 
 local updated_files = {}
 
+-- we can't require util here, some C libraries might not be available
+local function htmlEscape(text)
+    return text:gsub("[}{\">/<'&]", {
+        ["&"] = "&amp;",
+        ["<"] = "&lt;",
+        [">"] = "&gt;",
+        ['"'] = "&quot;",
+        ["'"] = "&#39;",
+        ["/"] = "&#47;",
+    })
+end
+
 local function isFile(str)
     local f = io.open(str, "r")
     if f then
@@ -207,7 +219,7 @@ local function htmlDescription(lang)
     local t = {}
     _.changeLang(lang)
     for i, v in ipairs (desc.paragraphs) do
-        table.insert(t, "<p>" .. util.htmlEscape(_(v)) .. "</p>")
+        table.insert(t, "<p>" .. htmlEscape(_(v)) .. "</p>")
     end
 
     table.insert(t, "<ul>")
@@ -347,7 +359,7 @@ local function genFastlane()
                 metadata_file = metadata_dir .. short
                 writeFile(short_translated, metadata_file)
             end
-            if long_orig ~= long_translated then
+            if full_orig ~= full_translated then
                 metadata_file = metadata_dir .. full
                 writeFile(full_translated, metadata_file)
             end