diff --git a/tools/building.py b/tools/building.py
index 3572daabbe..ad5df12bcc 100644
--- a/tools/building.py
+++ b/tools/building.py
@@ -27,8 +27,6 @@ class Win32Spawn:
 
         newargs = string.join(args[1:], ' ')
         cmdline = cmd + " " + newargs
-        startupinfo = subprocess.STARTUPINFO()
-        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
 
         # Make sure the env is constructed by strings
         _e = {k: str(v) for k, v in env.items()}
@@ -40,8 +38,7 @@ class Win32Spawn:
         os.environ['PATH'] = _e['PATH']
 
         try:
-            proc = subprocess.Popen(cmdline, env=_e,
-                    startupinfo=startupinfo, shell=False)
+            proc = subprocess.Popen(cmdline, env=_e, shell=False)
         except Exception as e:
             print 'Error in calling:\n%s' % cmdline
             print 'Exception: %s: %s' % (e, os.strerror(e.errno))