diff --git a/openerp/service/workers.py b/openerp/service/workers.py
index db64b626245..9264ef12996 100644
--- a/openerp/service/workers.py
+++ b/openerp/service/workers.py
@@ -184,7 +184,7 @@ class Multicorn(object):
             _logger.info("Stopping gracefully")
             limit = time.time() + self.timeout
             for pid in self.workers.keys():
-                self.worker_kill(pid, signal.SIGTERM)
+                self.worker_kill(pid, signal.SIGINT)
             while self.workers and time.time() < limit:
                 self.process_zombie()
                 time.sleep(0.1)