diff --git a/tests/Cross-shell testing/.test-run-by-specified-shell/With -s, a sh test should be invoked with sh. b/tests/Cross-shell testing/.test-run-by-specified-shell/With -s, a sh test should be invoked with sh.
index 4b13cf5..b8cda37 100755
--- a/tests/Cross-shell testing/.test-run-by-specified-shell/With -s, a sh test should be invoked with sh.	
+++ b/tests/Cross-shell testing/.test-run-by-specified-shell/With -s, a sh test should be invoked with sh.	
@@ -3,4 +3,4 @@
 # This script should run with /bin/sh
 # regardless of whether -s or -n is passed.
 
-ps -a | grep $$ | grep /bin/sh
+ps -o pid,comm,args | grep $$ | grep /bin/sh