diff --git a/tox.ini b/tox.ini
index 7df34c894..4be600bd2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,7 +8,6 @@ skipsdist = True
 # Note the hash seed is set to 0 until senlin can be tested with a
 # random hash seed successfully.
 setenv = VIRTUAL_ENV={envdir}
-         PYTHONHASHSEED=0
          OS_TEST_PATH=senlin/tests/unit
 
 deps = -r{toxinidir}/test-requirements.txt