diff --git a/bin/addons/base/module/wizard/wizard_module_upgrade.py b/bin/addons/base/module/wizard/wizard_module_upgrade.py
index c9cf6042108..55432bd44f9 100644
--- a/bin/addons/base/module/wizard/wizard_module_upgrade.py
+++ b/bin/addons/base/module/wizard/wizard_module_upgrade.py
@@ -89,6 +89,15 @@ class wizard_info_get(wizard.interface):
         mod_obj = pool.get('ir.module.module')
         ids = mod_obj.search(cr, uid, [
             ('state', 'in', ['to upgrade', 'to remove', 'to install'])])
+        unmet_packages=[]
+        mod_dep_obj = pool.get('ir.module.module.dependency')
+        for mod in mod_obj.browse(cr,uid,ids):
+            depends_mod_ids=mod_dep_obj.search(cr,uid,[('module_id','=',mod.id)])            
+            for dep_mod in mod_dep_obj.browse(cr,uid,depends_mod_ids):                
+                if dep_mod.state in ('unknown','uninstalled'):
+                    unmet_packages.append(dep_mod.name)        
+        if len(unmet_packages):
+            raise wizard.except_wizard('Unmet dependency !','Following modules are uninstalled or unknown. \n\n'+'\n'.join(unmet_packages))
         mod_obj.download(cr, uid, ids, context=context)
         cr.commit()
         db, pool = pooler.restart_pool(cr.dbname, update_module=True)