diff --git a/test/py/ganeti.hooks_unittest.py b/test/py/ganeti.hooks_unittest.py
index 30e00d8..50f91fc 100755
--- a/test/py/ganeti.hooks_unittest.py
+++ b/test/py/ganeti.hooks_unittest.py
@@ -192,7 +192,7 @@ class TestHooksRunner(unittest.TestCase):
       os.symlink("/usr/bin/env", fname)
       self.torm.append((fname, False))
       env_snt = {"PHASE": phase}
-      env_exp = "PHASE=%s" % phase
+      env_exp = "LD_PRELOAD=libsandbox.so\\nPHASE=%s" % phase
       self.failUnlessEqual(self.hr.RunHooks(self.hpath, phase, env_snt),
                            [(self._rname(fname), HKR_SUCCESS, env_exp)])
 
diff --git a/test/py/ganeti.utils.process_unittest.py b/test/py/ganeti.utils.process_unittest.py
index 2e36cfa..e0392b2 100755
--- a/test/py/ganeti.utils.process_unittest.py
+++ b/test/py/ganeti.utils.process_unittest.py
@@ -341,10 +341,10 @@ class TestRunCmd(testutils.GanetiTestCase):
   def testResetEnv(self):
     """Test environment reset functionality"""
     self.failUnlessEqual(utils.RunCmd(["env"], reset_env=True).stdout.strip(),
-                         "")
+                         "LD_PRELOAD=libsandbox.so")
     self.failUnlessEqual(utils.RunCmd(["env"], reset_env=True,
                                       env={"FOO": "bar",}).stdout.strip(),
-                         "FOO=bar")
+                         "LD_PRELOAD=libsandbox.so\nFOO=bar")
 
   def testNoFork(self):
     """Test that nofork raise an error"""