diff --git a/bin/sh/tests/execution/bg12.0 b/bin/sh/tests/execution/bg12.0
index 78102ecf630..a9bde6cac8a 100644
--- a/bin/sh/tests/execution/bg12.0
+++ b/bin/sh/tests/execution/bg12.0
@@ -4,7 +4,7 @@ T=`mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXXXX`
 trap 'rm -rf $T' 0
 cd $T || exit 3
 mkfifo fifo1
-{ trap - INT; : >fifo1; sleep 5; exit 4; } &
+{ trap - INT; : >fifo1; sleep 5 & wait; exit 4; } &
 : <fifo1
 kill -INT "$!"
 wait "$!"