diff --git a/util-linux/volume_id/cramfs.c b/util-linux/volume_id/cramfs.c
index 8dfd611..aeb7f20 100644
--- a/util-linux/volume_id/cramfs.c
+++ b/util-linux/volume_id/cramfs.c
@@ -20,6 +20,15 @@
 
 //kbuild:lib-$(CONFIG_FEATURE_VOLUMEID_CRAMFS) += cramfs.o
 
+//config:
+//config:config FEATURE_VOLUMEID_CRAMFS
+//config:	bool "cramfs filesystem"
+//config:	default y
+//config:	depends on VOLUMEID
+//config:	help
+//config:	  TODO
+//config:
+
 #include "volume_id_internal.h"
 
 struct cramfs_super {