diff --git a/packaging/perftest.sh b/packaging/perftest.sh
index 52b7403..745c484 100755
--- a/packaging/perftest.sh
+++ b/packaging/perftest.sh
@@ -32,7 +32,7 @@ die()
 usage()
 {
     cat <<EOM 1>&2
-usage: ${prog_NAME} [ OPTIONS ]
+usage: ${prog_NAME} [ OPTIONS ] <main_binary_localpath>
 Starts up a performance-test if job is supported and the binary has not been tested before.
 In the end a new histogram-plot is generated containing all the results over time.
 Options:
@@ -100,8 +100,6 @@ SERVER_DIR="0tmp/robur_perftest"
 
 info "processing UUID '$UUID'"
 
-DB="${DATA_DIR}/builder.sqlite3"
-
 DB="${DATA_DIR}/builder.sqlite3"
 [ ! -e "$DB" ] && die "The database doesn't exist: '$DB'"