diff --git a/dependenpy/utils.py b/dependenpy/utils.py
index 9fd0932..ca23f9c 100644
--- a/dependenpy/utils.py
+++ b/dependenpy/utils.py
@@ -242,7 +242,7 @@ def _build_up_matrix(self, down_level):
         modules_indexes = {}
         index_old, index_new = 0, -1
         for m in self.matrices[down_level]['modules']:
-            up_module = m['name'].split('.')[:down_level]
+            up_module = '.'.join(m['name'].split('.')[:down_level])
             # FIXME: We could maybe get rid of path...
             if seen_module.get(up_module, None) is not None:
                 # seen_module[up_module]['path'] += ', ' + m['path']
diff --git a/setup.py b/setup.py
index 1456554..0b1b3c3 100644
--- a/setup.py
+++ b/setup.py
@@ -9,19 +9,19 @@
 
 setup(
     name='dependenpy',
-    version='v0.2-beta',
+    version='v1.0',
     packages=['dependenpy'],
     license='MPL 2.0',
-    
+
     author='Timothée Mazzucotelli',
     author_email='timothee.mazzucotelli@gmail.com',
     url='https://github.com/Pawamoy/dependenpy',
-    download_url = 'https://github.com/Pawamoy/dependenpy/tarball/v0.2-beta',
-    
+    download_url = 'https://github.com/Pawamoy/dependenpy/tarball/v1.0',
+
     keywords="dependency matrix dsm",
     description="A Python module that builds a Dependency Matrix for your project.",
     classifiers=[
-        "Development Status :: 3 - Alpha",
+        "Development Status :: 5 - Production/Stable",
         "Environment :: Console",
         "Intended Audience :: Developers",
         "Topic :: Utilities",