diff --git a/lib/libc/tests/stdlib/clearenv_test.c b/lib/libc/tests/stdlib/clearenv_test.c
index 0c705bfece1e..40bd7f2ba0f5 100644
--- a/lib/libc/tests/stdlib/clearenv_test.c
+++ b/lib/libc/tests/stdlib/clearenv_test.c
@@ -1,176 +1,176 @@
 /*-
  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
  *
  * Copyright (C) 2021 Mariusz Zaborski <oshogbo@FreeBSD.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 
 /*
  * Test for clearenv(3) routine.
  */
 
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
 #include <atf-c.h>
 
 #include <stdio.h>
 #include <stdlib.h>
 
 #define TEST_VARIABLE		"TEST_VAR"
 #define TEST_SYSTEM_VARIABLE	"PWD"
 
 extern char **environ;
 
 void
 create_multiple_variables(int num)
 {
 	char name[64];
 	char value[64];
 	int i;
 
 	for (i = 0; i < num; i++) {
 		snprintf(name, sizeof(name), "%s_%d", TEST_VARIABLE, i);
 		snprintf(value, sizeof(value), "%d", i);
 		ATF_CHECK(getenv(name) == NULL);
 		ATF_CHECK(setenv(name, value, 0) != -1);
 		ATF_CHECK_STREQ(getenv(name), value);
 	}
 }
 
 void
 check_if_nulled_variables(int num)
 {
 	char name[64];
 	int i;
 
 	for (i = 0; i < num; i++) {
 		snprintf(name, sizeof(name), "%s_%d", TEST_VARIABLE, i);
 		ATF_CHECK(getenv(name) == NULL);
 	}
 }
 
 ATF_TC_WITHOUT_HEAD(clearenv__single_var_test);
 ATF_TC_BODY(clearenv__single_var_test, tc)
 {
 
 	ATF_CHECK(setenv(TEST_VARIABLE, "true", 0) != -1);
 	ATF_CHECK_STREQ(getenv(TEST_VARIABLE), "true");
 	ATF_CHECK(clearenv() == 0);
 	ATF_CHECK(getenv(TEST_VARIABLE) == NULL);
 }
 
 ATF_TC_WITHOUT_HEAD(clearenv__multiple_vars_test);
 ATF_TC_BODY(clearenv__multiple_vars_test, tc)
 {
 
 	create_multiple_variables(10);
 	ATF_CHECK(clearenv() == 0);
 	check_if_nulled_variables(10);
 }
 
 ATF_TC_WITHOUT_HEAD(clearenv__recreated_vars_test);
 ATF_TC_BODY(clearenv__recreated_vars_test, tc)
 {
 
 	create_multiple_variables(10);
 	ATF_CHECK(clearenv() == 0);
 	check_if_nulled_variables(10);
 	create_multiple_variables(10);
 }
 
 ATF_TC_WITHOUT_HEAD(clearenv__system_var_test);
 ATF_TC_BODY(clearenv__system_var_test, tc)
 {
 
 	ATF_CHECK(getenv(TEST_SYSTEM_VARIABLE) != NULL);
 	ATF_CHECK(clearenv() == 0);
 	ATF_CHECK(getenv(TEST_SYSTEM_VARIABLE) == NULL);
 }
 
 ATF_TC_WITHOUT_HEAD(clearenv__recreated_system_var_test);
 ATF_TC_BODY(clearenv__recreated_system_var_test, tc)
 {
 
 	ATF_CHECK(getenv(TEST_SYSTEM_VARIABLE) != NULL);
 	ATF_CHECK(clearenv() == 0);
 	ATF_CHECK(getenv(TEST_SYSTEM_VARIABLE) == NULL);
 	ATF_CHECK(setenv(TEST_SYSTEM_VARIABLE, "test", 0) != -1);
 	ATF_CHECK_STREQ(getenv(TEST_SYSTEM_VARIABLE), "test");
 }
 
 ATF_TC_WITHOUT_HEAD(clearenv__double_clear_vars);
 ATF_TC_BODY(clearenv__double_clear_vars, tc)
 {
 
 	create_multiple_variables(10);
 	ATF_CHECK(clearenv() == 0);
 	check_if_nulled_variables(10);
 	ATF_CHECK(clearenv() == 0);
 	check_if_nulled_variables(10);
 	create_multiple_variables(10);
 }
 
 ATF_TC_WITHOUT_HEAD(clearenv__environ_null);
 ATF_TC_BODY(clearenv__environ_null, tc)
 {
 
 	ATF_CHECK(clearenv() == 0);
-	ATF_CHECK(environ == NULL);
+	ATF_CHECK(environ != NULL);
 }
 
 ATF_TC_WITHOUT_HEAD(clearenv__putenv_vars);
 ATF_TC_BODY(clearenv__putenv_vars, tc)
 {
 	char buf[64], ref[64];
 
 	snprintf(buf, sizeof(buf), "%s=1", TEST_VARIABLE);
 	strcpy(ref, buf);
 
 	ATF_CHECK(getenv(TEST_VARIABLE) == NULL);
 	ATF_CHECK(putenv(buf) != -1);
 	ATF_CHECK(strcmp(getenv(TEST_VARIABLE), "1") == 0);
 
 	ATF_CHECK(clearenv() == 0);
 
 	ATF_CHECK(getenv(TEST_VARIABLE) == NULL);
 	ATF_CHECK(strcmp(buf, ref) == 0);
 }
 
 ATF_TP_ADD_TCS(tp)
 {
 
 	ATF_TP_ADD_TC(tp, clearenv__single_var_test);
 	ATF_TP_ADD_TC(tp, clearenv__multiple_vars_test);
 	ATF_TP_ADD_TC(tp, clearenv__recreated_vars_test);
 
 	ATF_TP_ADD_TC(tp, clearenv__system_var_test);
 	ATF_TP_ADD_TC(tp, clearenv__recreated_system_var_test);
 
 	ATF_TP_ADD_TC(tp, clearenv__double_clear_vars);
 	ATF_TP_ADD_TC(tp, clearenv__environ_null);
 
 	ATF_TP_ADD_TC(tp, clearenv__putenv_vars);
 
 	return (atf_no_error());
 }