diff --git a/_py/test/config.py b/_py/test/config.py
index e1c132988..cad7b15c8 100644
--- a/_py/test/config.py
+++ b/_py/test/config.py
@@ -261,8 +261,8 @@ class Config(object):
         conftestroots = config.getconftest_pathlist("rsyncdirs")
         if conftestroots:
             roots.extend(conftestroots)
-        pydirs = [py.path.local(py.__file__).dirpath(), 
-                  py._impldir]
+        pydirs = [x.realpath() for x in [py.path.local(py.__file__).dirpath(), 
+                  py._impldir]]
         roots = [py.path.local(root) for root in roots]
         for root in roots:
             if not root.check():