diff --git a/client/luascripts/calc_ev1_it.lua b/client/luascripts/hf_mfu_uidkeycalc.lua
similarity index 97%
rename from client/luascripts/calc_ev1_it.lua
rename to client/luascripts/hf_mfu_uidkeycalc.lua
index 2e333d147..f0e0b6b1f 100644
--- a/client/luascripts/calc_ev1_it.lua
+++ b/client/luascripts/hf_mfu_uidkeycalc.lua
@@ -13,13 +13,13 @@ Algo not found by me.
 ]]
 example =[[
      -- if called without, it reads tag uid
-     script run calc_ev1_it
+     script run hf_mfu_uidkeycalc
 
      --
-     script run calc_ev1_it -u 11223344556677
+     script run hf_mfu_uidkeycalc -u 11223344556677
 ]]
 usage = [[
-script run calc_ev1_it -h -u <uid> "
+script run hf_mfu_uidkeycalc -h -u <uid> "
 ]]
 arguments = [[
     -h             : this help