diff --git a/NEWS b/NEWS
index 8ddc9ec84..5fccf2eee 100644
--- a/NEWS
+++ b/NEWS
@@ -13,6 +13,9 @@ Any uppercase BUG_* names are modernish shell bug IDs.
   if they match a normal (non-**) glob pattern. For example, if '/lnk' is a
   symlink to a directory, '/lnk/**' and '/l?k/**' now work as you would expect.
 
+- Fixed a bug introduced on 2021-02-11 that caused job control on interactive
+  ksh sessions to misbehave if the login shell was replaced by ksh using 'exec'.
+
 2021-03-06:
 
 - Fixed an old expansion bug: expansions of type ${var=value} and ${var:=value}
diff --git a/src/cmd/ksh93/sh/jobs.c b/src/cmd/ksh93/sh/jobs.c
index 4c53204ea..e1c664b1d 100644
--- a/src/cmd/ksh93/sh/jobs.c
+++ b/src/cmd/ksh93/sh/jobs.c
@@ -552,8 +552,8 @@ void job_init(Shell_t *shp, int lflag)
                 job.mypgid = shp->gd->pid;
         }
 #ifdef SIGTSTP
-	possible = (setpgid(0,job.mypgid) >= 0);
-	if(sh_isoption(SH_INTERACTIVE) && (possible || errno==EPERM))
+	possible = (setpgid(0,job.mypgid) >= 0) || errno==EPERM;
+	if(sh_isoption(SH_INTERACTIVE) && possible)
 	{
 		/* wait until we are in the foreground */
 		while((job.mytgid=tcgetpgrp(JOBTTY)) != job.mypgid)