diff --git a/deluge/ui/client.py b/deluge/ui/client.py
index e8fab851e..3feba4c57 100644
--- a/deluge/ui/client.py
+++ b/deluge/ui/client.py
@@ -630,7 +630,7 @@ class Client(object):
         """
         try:
             if deluge.common.windows_check():
-                win32api.WinExec("deluged --port=%s --config=%s" % (port, config))
+                win32api.WinExec("deluged --port=%s --config=\"%s\"" % (port, config))
             elif deluge.common.osx_check():
                 subprocess.call(["nohup", "deluged", "--port=%s" % port, "--config=%s" % config])
             else: