diff --git a/.flake8 b/.flake8
index d34cc7a..94b9207 100644
--- a/.flake8
+++ b/.flake8
@@ -19,5 +19,6 @@ include =
 exclude =
     src/calmjs/parse/parsers/*tab*.py,
     .git,
+    .eggs,
     .env*,
     env*
diff --git a/setup.py b/setup.py
index f5a09e4..c331c10 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,27 @@
+import atexit
 import sys
 from setuptools import setup, find_packages
+from setuptools.command.develop import develop
+from setuptools.command.install import install
 from subprocess import call
 
+
+class DevelopHook(develop):
+    """For hooking the optimizer when setup exits"""
+    def __init__(self, *a, **kw):
+        develop.__init__(self, *a, **kw)
+        atexit.register(
+            call, [sys.executable, '-m', 'calmjs.parse.parsers.optimize'])
+
+
+class InstallHook(install):
+    """For hooking the optimizer when setup exits"""
+    def __init__(self, *a, **kw):
+        install.__init__(self, *a, **kw)
+        atexit.register(
+            call, [sys.executable, '-m', 'calmjs.parse.parsers.optimize'])
+
+
 version = '0.9.0'
 
 classifiers = """
@@ -41,13 +61,14 @@
     namespace_packages=['calmjs'],
     include_package_data=True,
     zip_safe=False,
+    cmdclass={
+        'develop': DevelopHook,
+        'install': InstallHook,
+    },
     install_requires=[
         'ply>=3.6',
     ],
-    entry_points="""
-    # -*- Entry points: -*-
-    """,
+    entry_points={
+    },
     test_suite="calmjs.parse.tests.make_suite",
 )
-
-call([sys.executable, '-m', 'calmjs.parse.parsers.optimize'])