diff --git a/oslo_rootwrap/client.py b/oslo_rootwrap/client.py
index ee64b74..0dd0742 100644
--- a/oslo_rootwrap/client.py
+++ b/oslo_rootwrap/client.py
@@ -85,6 +85,15 @@ class Client(object):
                             (stderr,))
         LOG.info("Spawned new rootwrap daemon process with pid=%d",
                  process_obj.pid)
+
+        def wait_process():
+            return_code = process_obj.wait()
+            LOG.info("Rootwrap daemon process exit with status: %d",
+                     return_code)
+
+        reap_process = threading.Thread(target=wait_process)
+        reap_process.daemon = True
+        reap_process.start()
         self._manager = ClientManager(socket_path, authkey)
         self._manager.connect()
         self._proxy = self._manager.rootwrap()
diff --git a/releasenotes/notes/reap-rootwrap-daemon-process-60aebb56d8015484.yaml b/releasenotes/notes/reap-rootwrap-daemon-process-60aebb56d8015484.yaml
new file mode 100644
index 0000000..79bd400
--- /dev/null
+++ b/releasenotes/notes/reap-rootwrap-daemon-process-60aebb56d8015484.yaml
@@ -0,0 +1,11 @@
+---
+fixes:
+  - |
+    Reap the rootwrap daemon process after it is timeout and quit. When the
+    daemon process is timeout, it will kill itself. But the parent doesn't reap
+    it. Fixed this behaviour by adding a thread to wait the process to be done
+    once the daemon is started.
+
+    More info please refer the LP #1850241 [1].
+
+    [1] https://bugs.launchpad.net/oslo.rootwrap/+bug/1850241