diff --git a/src/lua/runtime/maivi.lua b/src/lua/runtime/maivi.lua
index 15a538f..3e8fe94 100644
--- a/src/lua/runtime/maivi.lua
+++ b/src/lua/runtime/maivi.lua
@@ -98,7 +98,7 @@ function maivi.parse(args)
           table.insert(boolean_props, prop)
         end
       elseif k == "data" then
-        for kdata, prop in ipairs(v) do
+        for kdata, prop in pairs(v) do
           props["data-" .. kdata] = maivi.display.attr(prop)
         end
       else