diff --git a/usr.bin/xargs/tests/Makefile b/usr.bin/xargs/tests/Makefile
--- a/usr.bin/xargs/tests/Makefile
+++ b/usr.bin/xargs/tests/Makefile
@@ -14,11 +14,12 @@
 ${PACKAGE}FILES+=		regress.J.out
 ${PACKAGE}FILES+=		regress.L.out
 ${PACKAGE}FILES+=		regress.P1.out
-${PACKAGE}FILES+=		regress.R.out
 ${PACKAGE}FILES+=		regress.R-1.out
+${PACKAGE}FILES+=		regress.R.out
 ${PACKAGE}FILES+=		regress.in
 ${PACKAGE}FILES+=		regress.n1.out
 ${PACKAGE}FILES+=		regress.n2.out
+${PACKAGE}FILES+=		regress.n2147483647.out
 ${PACKAGE}FILES+=		regress.n2P0.out
 ${PACKAGE}FILES+=		regress.n3.out
 ${PACKAGE}FILES+=		regress.normal.out