diff --git a/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/funcs/tst.system.d b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/funcs/tst.system.d
index 63a850133b3f..4d5cced71c79 100644
--- a/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/funcs/tst.system.d
+++ b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/funcs/tst.system.d
@@ -1,45 +1,45 @@
 /*
  * CDDL HEADER START
  *
  * The contents of this file are subject to the terms of the
  * Common Development and Distribution License (the "License").
  * You may not use this file except in compliance with the License.
  *
  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  * or http://www.opensolaris.org/os/licensing.
  * See the License for the specific language governing permissions
  * and limitations under the License.
  *
  * When distributing Covered Code, include this CDDL HEADER in each
  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  * If applicable, add the following below this CDDL HEADER, with the
  * fields enclosed by brackets "[]" replaced with your own identifying
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
  */
 
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
 #pragma ident	"%Z%%M%	%I%	%E% SMI"
 
 #pragma D option quiet
 #pragma D option destructive
 
 BEGIN
 {
 	this->a = 9;
 	this->b = -2;
 
 	system("echo %s %d %d", "foo", this->a, this->b);
-	system("ping -q -c 1 localhost 2>/dev/null | grep -v '^round-trip '");
+	system("ping -q -c 1 127.0.0.1 2>/dev/null | grep -v '^round-trip '");
 	system("echo %d", ++this->a);
-	system("ping -q -c 1 localhost 2>/dev/null | grep -v '^round-trip '");
+	system("ping -4 -q -c 1 127.0.0.1 2>/dev/null | grep -v '^round-trip '");
 	system("echo %d", ++this->a);
-	system("ping -q -c 1 localhost 2>/dev/null | grep -v '^round-trip '");
+	system("ping -4 -q -c 1 127.0.0.1 2>/dev/null | grep -v '^round-trip '");
 	system("echo %d", ++this->a);
 	exit(0);
 }