diff --git a/init/Kconfig b/init/Kconfig
index fef641a..47879a8 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -436,6 +436,13 @@
 	  In this namespace tasks see different info provided with the
 	  uname() system call
 
+config IPC_NS
+	bool "IPC namespace"
+	depends on NAMESPACES && SYSVIPC
+	help
+	  In this namespace tasks work with IPC ids which correspond to
+	  different IPC objects in different namespaces
+
 config BLK_DEV_INITRD
 	bool "Initial RAM filesystem and RAM disk (initramfs/initrd) support"
 	depends on BROKEN || !FRV