diff --git a/tools/regression/usr.bin/Makefile b/tools/regression/usr.bin/Makefile
index d577a04a98e9..6e6d6f124b1d 100644
--- a/tools/regression/usr.bin/Makefile
+++ b/tools/regression/usr.bin/Makefile
@@ -1,5 +1,5 @@
 # $FreeBSD$
 
-SUBDIR=	calendar file2c join jot m4 printf sed uudecode uuencode xargs lastcomm
+SUBDIR=	calendar file2c join jot m4 printf sed tr uudecode uuencode xargs lastcomm
 
 .include <bsd.subdir.mk>