diff --git a/test/runtests.jl b/test/runtests.jl
index 6bd7af11..dd58ed1d 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -79,12 +79,12 @@ array2py2arrayeq(x) = PyCall.py2array(Float64,PyCall.array2py(x)) == x
 @test PyObject("hello") == PyObject("hello")
 @test PyObject("hello") != PyObject("hellö")
 @test PyObject(hash) == PyObject(hash)
-@test PyObject(hash) != PyObject(bitmix)
+@test PyObject(hash) != PyObject(println)
 @test hash(PyObject("hello")) == hash(PyObject("hello"))
 @test hash(PyObject("hello")) != hash(PyObject("hellö"))
 @test hash(PyObject("hello")) != hash("hellö")
 @test hash(PyObject(hash)) == hash(PyObject(hash))
-@test hash(PyObject(hash)) != hash(PyObject(bitmix))
+@test hash(PyObject(hash)) != hash(PyObject(println))
 @test hash(PyObject(hash)) != hash(hash)
 
 # issue #92: