diff --git a/client/luascripts/hf_mf_uidbruteforce.lua b/client/luascripts/hf_mf_uidbruteforce.lua
index 4835ba03b..88dca4273 100644
--- a/client/luascripts/hf_mf_uidbruteforce.lua
+++ b/client/luascripts/hf_mf_uidbruteforce.lua
@@ -124,7 +124,7 @@ local function main(args)
         local c = string.format( command, n )
         print('Running: "'..c..'"')
         core.console(c)
-        core.console('msleep '..timeout);
+        core.console('msleep -t'..timeout);
         core.console('hw ping')
     end