diff --git a/util-linux/freeramdisk.c b/util-linux/freeramdisk.c
index a89ae1a..8bc2c44 100644
--- a/util-linux/freeramdisk.c
+++ b/util-linux/freeramdisk.c
@@ -8,6 +8,36 @@
  *
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
+//config:config FDFLUSH
+//config:	bool "fdflush"
+//config:	default y
+//config:	select PLATFORM_LINUX
+//config:	help
+//config:	  fdflush is only needed when changing media on slightly-broken
+//config:	  removable media drives. It is used to make Linux believe that a
+//config:	  hardware disk-change switch has been actuated, which causes Linux to
+//config:	  forget anything it has cached from the previous media. If you have
+//config:	  such a slightly-broken drive, you will need to run fdflush every time
+//config:	  you change a disk. Most people have working hardware and can safely
+//config:	  leave this disabled.
+//config:
+//config:config FREERAMDISK
+//config:	bool "freeramdisk"
+//config:	default y
+//config:	select PLATFORM_LINUX
+//config:	help
+//config:	  Linux allows you to create ramdisks. This utility allows you to
+//config:	  delete them and completely free all memory that was used for the
+//config:	  ramdisk. For example, if you boot Linux into a ramdisk and later
+//config:	  pivot_root, you may want to free the memory that is allocated to the
+//config:	  ramdisk. If you have no use for freeing memory from a ramdisk, leave
+//config:	  this disabled.
+
+//applet:IF_FDFLUSH(APPLET_ODDNAME(fdflush, freeramdisk, BB_DIR_BIN, BB_SUID_DROP, fdflush))
+//applet:IF_FREERAMDISK(APPLET(freeramdisk, BB_DIR_SBIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_FDFLUSH) += freeramdisk.o
+//kbuild:lib-$(CONFIG_FREERAMDISK) += freeramdisk.o
 
 //usage:#define freeramdisk_trivial_usage
 //usage:       "DEVICE"