diff --git a/sys/modules/hyperv/Makefile b/sys/modules/hyperv/Makefile
index 3bae26ac403..25b32e3a3cf 100644
--- a/sys/modules/hyperv/Makefile
+++ b/sys/modules/hyperv/Makefile
@@ -1,5 +1,5 @@
 # $FreeBSD$
 
-SUBDIR = vmbus netvsc storvsc utilities
+SUBDIR = vmbus netvsc stordisengage storvsc utilities
 
 .include <bsd.subdir.mk>
diff --git a/sys/modules/hyperv/stordisengage/Makefile b/sys/modules/hyperv/stordisengage/Makefile
new file mode 100644
index 00000000000..0f3a6801108
--- /dev/null
+++ b/sys/modules/hyperv/stordisengage/Makefile
@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+.PATH:  ${.CURDIR}/../../../contrib/dev/hyperv/stordisengage
+
+KMOD=	 hv_ata_pci_disengage
+
+SRCS =	hv_ata_pci_disengage.c
+
+.include <bsd.kmod.mk>