diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 4cea5c8..5164ef7 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -1,5 +1,6 @@
 %option backup nostdinit noyywrap never-interactive full ecs
 %option 8bit backup nodefault perf-report perf-report
+%option noinput
 %x COMMAND HELP STRING PARAM
 %{
 /*