diff --git a/client/gen_pm3mfsim_script.sh b/client/gen_pm3mfsim_script.sh
index 3adb8e420..c3726d69c 100644
--- a/client/gen_pm3mfsim_script.sh
+++ b/client/gen_pm3mfsim_script.sh
@@ -32,4 +32,4 @@ rm $2
 echo "hf mf eclr" >> $2
 echo "hf mf eload" $1 >> $2
 echo "hf mf ekeyprn" >> $2
-echo "hf mf sim" `cat $1.eml | (read -n 8 uid; echo $uid)` >> $2
\ No newline at end of file
+echo "hf mf sim u" `cat $1.eml | (read -n 8 uid; echo $uid)` >> $2
\ No newline at end of file