diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 81b0c61..2ab91b9 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -77,6 +77,11 @@
 	esac
 done
 
+if [ "$#" -lt 2 ] ; then
+	usage
+	exit
+fi
+
 INITFILE=$1
 shift;