diff --git a/__tryton__.py b/__tryton__.py
index 11c9385d48..8b4343db7a 100644
--- a/__tryton__.py
+++ b/__tryton__.py
@@ -2,7 +2,7 @@
 #this repository contains the full copyright notices and license terms.
 {
     "name" : "Google Maps",
-    "version" : "0.1",
+    "version" : "0.0.1",
     "author" : "B2CK",
     'email': 'info@b2ck.com',
     'website': 'http://www.tryton.org/',
diff --git a/setup.py b/setup.py
index f2fa2b14ce..6029f6ea22 100644
--- a/setup.py
+++ b/setup.py
@@ -12,13 +12,17 @@ for dep in info.get('depends', []):
     match = re.compile(
             '(ir|res|workflow|webdav)((\s|$|<|>|<=|>=|==|!=).*?$)').match(dep)
     if match:
-        dep = 'trytond' + match.group(2)
+        continue
     else:
         dep = 'trytond_' + dep
     requires.append(dep)
 
+major_version, minor_version, _ = info.get('version', '0.0.1').split('.', 2)
+requires.append('trytond >= %s.%s' % (major_version, minor_version))
+requires.append('trytond < %s.%s' % (major_version, str(int(minor_version) + 1)))
+
 setup(name='trytond_' + info['name'].lower(),
-    version=info.get('version', '0'),
+    version=info.get('version', '0.0.1'),
     description=info.get('description', ''),
     author=info.get('author', ''),
     author_email=info.get('email', ''),