diff --git a/openerp/http.py b/openerp/http.py
index 3fc4aeb60f2..34b9cf19abf 100644
--- a/openerp/http.py
+++ b/openerp/http.py
@@ -181,7 +181,7 @@ class WebRequest(object):
 
         if self._cr:
             # Dont commit test cursors
-            if not openerp.tests.common.release_test_cursor(self.session_id):
+            if not openerp.tests.common.release_test_cursor(self._cr):
                 if exc_type is None:
                     self._cr.commit()
                 self._cr.close()
diff --git a/openerp/tests/common.py b/openerp/tests/common.py
index 5d3762a6f7d..b0dcac47408 100644
--- a/openerp/tests/common.py
+++ b/openerp/tests/common.py
@@ -48,10 +48,9 @@ def acquire_test_cursor(session_id):
             cr._test_lock.acquire()
             return cr
 
-def release_test_cursor(session_id):
+def release_test_cursor(cr):
     if openerp.tools.config['test_enable']:
-        cr = HTTP_SESSION.get(session_id)
-        if cr:
+        if hasattr(cr, '_test_lock'):
             cr._test_lock.release()
             return True
     return False