diff --git a/eas/do_sims.sh b/eas/do_sims.sh
index 11222e5b05914b1c2aa2f4bbcaca3e9f2157c94c..71175e332b7086b78221b3cd7197b3737f6ae3c4 100755
--- a/eas/do_sims.sh
+++ b/eas/do_sims.sh
@@ -343,7 +343,7 @@ fi
 echo -e "#  INFO   : Executable file is ($corsika_bin)"
 
 # It is important to now the total time in onedata. Adding total simulation time to the project name...
-$prj = "$prj_$tim"
+$prj = "$prj_$(printf "%06d" $tim)"
 direct=$wdir/$prj
 basearti=${ARTI}
 #helium -> Usually for 1 hour flux, 4 different procces is enough