diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index 7c95ea331b32..8e3a0120ba0e 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.229 2019/10/28 13:19:50 maya Exp $
+#	$NetBSD: Makefile,v 1.230 2019/10/28 16:03:55 pgoyette Exp $
 
 .include <bsd.own.mk>
 
@@ -54,7 +54,7 @@ SUBDIR+=	exec_script
 SUBDIR+=	fdesc
 SUBDIR+=	ffs
 SUBDIR+=	filecore
-#SUBDIR+=	filemon
+SUBDIR+=	filemon
 SUBDIR+=	flash
 SUBDIR+=	fss
 SUBDIR+=	gpio
diff --git a/sys/modules/filemon/Makefile b/sys/modules/filemon/Makefile
index 19511079f498..418bfca52483 100644
--- a/sys/modules/filemon/Makefile
+++ b/sys/modules/filemon/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.3 2019/10/13 07:28:13 mrg Exp $
+# $NetBSD: Makefile,v 1.4 2019/10/28 16:03:55 pgoyette Exp $
 
 .include "../Makefile.inc"
 
@@ -11,4 +11,10 @@ NOMAN = no
 
 COPTS.filemon_wrapper.c+=	${GCC_NO_CAST_FUNCTION_TYPE}
 
+# Due to security concerns, we don't install the filemon module.  We
+# do, however, want to keep building it to prevent bit-rot.  Define
+# an empty install target for this.
+
+kmodinstall:
+
 .include <bsd.kmodule.mk>