diff --git a/net/unix/Kconfig b/net/unix/Kconfig
index 5a69733bcdadbfcbbca874083a0e950cd27bb9f2..c2128b10e5f98fe3d4c409c1314247f67512ccfc 100644
--- a/net/unix/Kconfig
+++ b/net/unix/Kconfig
@@ -19,3 +19,10 @@ config UNIX
 
 	  Say Y unless you know what you are doing.
 
+config UNIX_DIAG
+	tristate "UNIX: socket monitoring interface"
+	depends on UNIX
+	default UNIX
+	---help---
+	  Support for UNIX socket monitoring interface used by the ss tool.
+	  If unsure, say Y.
diff --git a/net/unix/Makefile b/net/unix/Makefile
index b852a2bde9a8f03b7a5f3615024b0ed02774f98c..b663c607b1c613e875501cec703a439e1ca0bce3 100644
--- a/net/unix/Makefile
+++ b/net/unix/Makefile
@@ -6,3 +6,6 @@ obj-$(CONFIG_UNIX)	+= unix.o
 
 unix-y			:= af_unix.o garbage.o
 unix-$(CONFIG_SYSCTL)	+= sysctl_net_unix.o
+
+obj-$(CONFIG_UNIX_DIAG)	+= unix_diag.o
+unix_diag-y		:= diag.o