diff --git a/openerp/tools/debugger.py b/openerp/tools/debugger.py
index 293d4052513..3634681c566 100644
--- a/openerp/tools/debugger.py
+++ b/openerp/tools/debugger.py
@@ -4,5 +4,11 @@ import types
 
 def post_mortem(config, info):
     if config['debug_mode'] and isinstance(info[2], types.TracebackType):
-        import pdb
+        try:
+            import pudb as pdb
+        except ImportError:
+            try:
+                import ipdb as pdb
+            except ImportError:
+                import pdb
         pdb.post_mortem(info[2])