diff --git a/test_zfsautobackup.py b/test_zfsautobackup.py
index 83a537f..fd6bfe6 100644
--- a/test_zfsautobackup.py
+++ b/test_zfsautobackup.py
@@ -328,9 +328,9 @@ test_target1/fs2/sub@test-20101111000000
 
     def  test_clearrefres(self):
 
-        #on zfs utils 0.6.x -x isnt supported but returns 0 somehow
+        #on zfs utils 0.6.x -x isnt supported 
         r=shelltest("zfs recv -x bla test >/dev/null </dev/zero; echo $?")
-        if r=="\n0\n":
+        if r=="\n2\n":
             self.skipTest("This zfs-userspace version doesnt support -x")
 
         r=shelltest("zfs set refreservation=1M test_source1/fs1")
@@ -367,9 +367,9 @@ test_target1/test_source2/fs2/sub@test-20101111000000  refreservation  -
 
     def  test_clearmount(self):
 
-        #on zfs utils 0.6.x -o isnt supported but returns 0 somehow
+        #on zfs utils 0.6.x -o isnt supported 
         r=shelltest("zfs recv -o bla=1 test >/dev/null </dev/zero; echo $?")
-        if r=="\n0\n":
+        if r=="\n2\n":
             self.skipTest("This zfs-userspace version doesnt support -o")