diff --git a/check_mysqlserver b/check_mysqlserver
index c77e64661c6fe1d516ddf7ecfb96b3e193ca5db9..bb9ac837d053b62e178b0628ec917af244d5c832 100755
--- a/check_mysqlserver
+++ b/check_mysqlserver
@@ -32,7 +32,7 @@ HOME=/etc/icingaclient
 # --- other vars...
 cfgfile=$HOME/.my.cnf
 myuser=icingamonitor
-datafile=/tmp/mysqlvars.out
+datafile=/tmp/mysqlvars_$USER.out
 
 # new line
 NL="