diff --git a/concept.py b/concept.py
index dcc466b..e679958 100644
--- a/concept.py
+++ b/concept.py
@@ -72,6 +72,7 @@ class BaseRelation(DyadicRelation):
     #@property
     #def __parent__(self):
     #    return self.first
+    # So we patched zope.location.location, line 109...
 
 
 class ConceptRelation(BaseRelation):
diff --git a/expert/tests.py b/expert/tests.py
index b5b06a8..85f33ff 100755
--- a/expert/tests.py
+++ b/expert/tests.py
@@ -3,7 +3,12 @@
 import unittest, doctest
 from zope.testing.doctestunit import DocFileSuite
 from zope.interface.verify import verifyClass
-from loops.expert import query
+try:
+    from loops.expert import query
+    ignore = False
+except ImportError:
+    print 'Skipping loops.expert'
+    ignore = True
 
 class Test(unittest.TestCase):
     "Basic tests for the expert sub-package."
@@ -13,6 +18,8 @@ class Test(unittest.TestCase):
 
 
 def test_suite():
+    if ignore:
+        return unittest.TestSuite()  # do nothing
     flags = doctest.NORMALIZE_WHITESPACE | doctest.ELLIPSIS
     return unittest.TestSuite((
                 unittest.makeSuite(Test),