diff --git a/Makefile.inc1 b/Makefile.inc1
index b8e1f7336e14..2840119cbd76 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -1509,6 +1509,7 @@ _sysent_dirs+=	sys/compat/cloudabi32	\
 		sys/compat/cloudabi64
 _sysent_dirs+=	sys/amd64/linux		\
 		sys/amd64/linux32	\
+		sys/arm/linux		\
 		sys/arm64/linux		\
 		sys/i386/linux
 sysent: .PHONY