diff --git a/res/scripts/stdmin.lua b/res/scripts/stdmin.lua
index 72383dced..5b93fa2f9 100644
--- a/res/scripts/stdmin.lua
+++ b/res/scripts/stdmin.lua
@@ -1,6 +1,6 @@
 -- Check if given table is an array
 function is_array(x)
-    if #t > 0 then
+    if #x > 0 then
         return true
     end
     for k, v in pairs(x) do