diff --git a/resources/scripts/build/boot/roms b/resources/scripts/build/boot/roms
index f0398273..28885e62 100755
--- a/resources/scripts/build/boot/roms
+++ b/resources/scripts/build/boot/roms
@@ -32,7 +32,7 @@ set -u -e
 projectname="$(cat projectname)"
 opts=""
 boards=
-firstoption="${1}"
+firstoption=""
 
 main()
 {
@@ -40,6 +40,7 @@ main()
 		usage
 		exit 1
 	fi
+	firstoption="${1}"
 
 	if [ "${firstoption}" = "help" ]; then
 		usage