2 files changed, 5 insertions, 0 deletions

diff --git a/tools/regression/usr.bin/sed/regress.sh b/tools/regression/usr.bin/sed/regress.sh
index bec79f1e6821f..e714af28eece7 100644
--- a/tools/regression/usr.bin/sed/regress.sh
+++ b/tools/regression/usr.bin/sed/regress.sh
@@ -5,5 +5,6 @@ REGRESSION_START($1)
 REGRESSION_TEST(`G', `sed G < regress.in')
 REGRESSION_TEST(`P', `sed P < regress.in')
 REGRESSION_TEST(`psl', `sed \$!g\;P\;D < regress.in')
+REGRESSION_TEST(`y', `sed y/\(\)/{}/ < regress.in')
 
 REGRESSION_END()
diff --git a/tools/regression/usr.bin/sed/regress.y.out b/tools/regression/usr.bin/sed/regress.y.out
new file mode 100644
index 0000000000000..89671f37149dc
--- /dev/null
+++ b/tools/regression/usr.bin/sed/regress.y.out
@@ -0,0 +1,4 @@
+input
+data
+for validation
+of sed{1}