diff --git a/testsuite/expect/test18.21 b/testsuite/expect/test18.21
index 4305e04144e098e1acdd6e24717b46ee84888dc5..6b78a7c135297a373879b71f9892e97c3aab4fe7 100755
--- a/testsuite/expect/test18.21
+++ b/testsuite/expect/test18.21
@@ -57,6 +57,7 @@ main()
 {
 	char *id = getenv("SLURM_PROCID");
 	if (atoi(id) == 9) {
+		sleep(1); /* helps with proctrack/linuxproc problem */
 		exit(2);
 	}
 	sleep(15);