diff --git a/testsuite/config/unix.exp b/testsuite/config/unix.exp
index d7bf86ac..562fff0b 100644
--- a/testsuite/config/unix.exp
+++ b/testsuite/config/unix.exp
@@ -224,6 +224,18 @@ proc kill_testshm_proc { } {
     kill_process $testshmproc_pid
 }
 
+proc make_schedbatch_proc { nice_val } {
+    global schedbatch_proc_pid topdir
+    set schedbatch_path "${topdir}testsuite/test-schedbatch"
+
+    set schedbatch_proc_pid [ spawn $schedbatch_path $nice_val ]
+}
+
+proc kill_schedbatch_proc { } {
+    global schedbatch_proc_pid
+    kill_process $schedbatch_proc_pid
+}
+
 proc kill_testproc { } {
     global testproc_path testproc1_pid testproc2_pid
 
diff --git a/testsuite/ps.test/ps_personality.exp b/testsuite/ps.test/ps_personality.exp
index f873a193..da55e1d3 100644
--- a/testsuite/ps.test/ps_personality.exp
+++ b/testsuite/ps.test/ps_personality.exp
@@ -15,4 +15,4 @@ foreach { pers match } $pers_match  {
   spawn $ps
   expect_pass "$test" $match
 }
-
+set env(PS_PERSONALITY) ""
diff --git a/testsuite/ps.test/ps_sched_batch.exp b/testsuite/ps.test/ps_sched_batch.exp
index ff948db2..ad5f30f1 100644
--- a/testsuite/ps.test/ps_sched_batch.exp
+++ b/testsuite/ps.test/ps_sched_batch.exp
@@ -2,10 +2,12 @@
 # check the ps SCHED_BATCH scheduler policy output
 #
 set ps "${topdir}src/ps/pscommand"
-set schedbatch "${topdir}testsuite/test-schedbatch"
 
-spawn $schedbatch 18
+set nice_val 18
+make_schedbatch_proc $nice_val
 
 set test "ps SCHED_BATCH scheduler"
-spawn $ps --no-header -o comm,cls,nice -a
-expect_pass "$test" "(?n)^test-schedbatch\\s+B\\s+18\\r?\$"
+spawn $ps --no-header -o comm,cls,nice -ax
+expect_pass "$test" "(?n)^test-schedbatch\\s+B\\s+$nice_val\\r?\$"
+
+kill_schedbatch_proc