diff --git a/bin/sh/jobs.c b/bin/sh/jobs.c
--- a/bin/sh/jobs.c
+++ b/bin/sh/jobs.c
@@ -1092,8 +1092,10 @@
 	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) {
+			backgndpid = jp->ps[0].pid;
 			dotrap();
+		}
 #if JOBS
 	if (jp->jobctl) {
 		if (ttyfd >= 0 && tcsetpgrp(ttyfd, rootpid) < 0)