diff --git a/bin/sh/jobs.c b/bin/sh/jobs.c
--- a/bin/sh/jobs.c
+++ b/bin/sh/jobs.c
@@ -1078,6 +1078,7 @@
 #if JOBS
 	int propagate_int = jp->jobctl && jp->foreground;
 #endif
+	int jobindex;
 	int status;
 	int st;
 
@@ -1085,8 +1086,11 @@
 	TRACE(("waitforjob(%%%td) called\n", jp - jobtab + 1));
 	while (jp->state == 0)
 		if (dowait(DOWAIT_BLOCK | (Tflag ? DOWAIT_SIG |
-		    DOWAIT_SIG_TRAP : 0), jp) == -1)
+		    DOWAIT_SIG_TRAP : 0), jp) == -1) {
+			jobindex = jp - jobtab;
 			dotrap();
+			jp = jobtab + jobindex;
+		}
 #if JOBS
 	if (jp->jobctl) {
 		if (ttyfd >= 0 && tcsetpgrp(ttyfd, rootpid) < 0)
diff --git a/bin/sh/tests/execution/Makefile b/bin/sh/tests/execution/Makefile
--- a/bin/sh/tests/execution/Makefile
+++ b/bin/sh/tests/execution/Makefile
@@ -18,6 +18,7 @@
 ${PACKAGE}FILES+=		bg11.0
 ${PACKAGE}FILES+=		bg12.0
 ${PACKAGE}FILES+=		bg13.0
+${PACKAGE}FILES+=		bg14.0
 ${PACKAGE}FILES+=		env1.0
 ${PACKAGE}FILES+=		fork1.0
 ${PACKAGE}FILES+=		fork2.0
diff --git a/bin/sh/tests/execution/bg14.0 b/bin/sh/tests/execution/bg14.0
new file mode 100644
--- /dev/null
+++ b/bin/sh/tests/execution/bg14.0
@@ -0,0 +1,9 @@
+T=`mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXXXX`
+trap 'rm -rf "$T"' 0
+cd "$T" || exit 3
+mkfifo fifo1 || exit 3
+set -T
+trap "for i in 1 2 3 4; do sleep 1 & done" USR1
+sleep 1 &
+{ kill -USR1 "$$"; echo .; } >fifo1 &
+(read dummy <fifo1)