diff --git a/redislite/client.py b/redislite/client.py
index bd4843f..2f012b1 100644
--- a/redislite/client.py
+++ b/redislite/client.py
@@ -107,7 +107,7 @@ def _cleanup(self, sys_modules=None):
                                     time.sleep(.1)
                             if process.is_running() and process.pid != 0:
                                 logger.warning('Redis graceful shutdown failed, forcefully killing pid %r', self.pid)
-                                os.kill(self.pid, signal.SIGKILL)
+                                os.kill(process.pid, signal.SIGKILL)
                         except psutil.NoSuchProcess:
                             pass
                 self.socket_file = None