diff --git a/support/testing/tests/package/test_acl.py b/support/testing/tests/package/test_acl.py
index e4827c7bec..4511c6db5b 100644
--- a/support/testing/tests/package/test_acl.py
+++ b/support/testing/tests/package/test_acl.py
@@ -52,8 +52,7 @@ class TestAcl(infra.basetest.BRTest):
 
         # Reading the file as the test user is expected to fail.
         test_read_cmd = f"su - {test_user} -c 'cat {test_file}'"
-        _, ret = self.emulator.run(test_read_cmd)
-        self.assertNotEqual(ret, 0)
+        self.assertRunNotOk(test_read_cmd)
 
         # We add a special read ACL for the test user.
         cmd = f"setfacl -m u:{test_user}:r {test_file}"
@@ -73,8 +72,7 @@ class TestAcl(infra.basetest.BRTest):
         # Attempting to write to the file as the test user is expected
         # to fail (since we put an ACL only for reading).
         cmd = f"su - {test_user} -c 'echo WriteTest > {test_file}'"
-        _, ret = self.emulator.run(cmd)
-        self.assertNotEqual(ret, 0)
+        self.assertRunNotOk(cmd)
 
         # Remove all ACLs. This could have been done with the command
         # "setfacl -b". Instead, we use the "chacl -B" command which
@@ -83,5 +81,4 @@ class TestAcl(infra.basetest.BRTest):
         self.assertRunOk(f"chacl -B {test_file}")
 
         # Reading the file as the test user is expected to fail again.
-        _, ret = self.emulator.run(test_read_cmd)
-        self.assertNotEqual(ret, 0)
+        self.assertRunNotOk(test_read_cmd)