diff --git a/lib/awful/tag.lua.in b/lib/awful/tag.lua.in
index cbaed182..c2cd1d32 100644
--- a/lib/awful/tag.lua.in
+++ b/lib/awful/tag.lua.in
@@ -256,6 +256,7 @@ function tag.gettags(s)
         for _, t in ipairs(tags) do
             if not tag.getproperty(t, "index") then
                 tag.setproperty(t, "index", (#tags - without_index + 1))
+                without_index = without_index - 1
             end
         end
     end