diff --git a/resources/build/html-link.lua b/resources/build/html-link.lua
index 9578928682..36d761cbca 100644
--- a/resources/build/html-link.lua
+++ b/resources/build/html-link.lua
@@ -1,3 +1,5 @@
+local redirect
+
 function Link(elem)
   if isLocalLink(elem) then
     if isFolderLink(elem) then