diff --git a/compile/remote-compile/lbc/tool/surfServer.py b/compile/remote-compile/lbc/tool/surfServer.py
index c91ebf5..454b7d1 100644
--- a/compile/remote-compile/lbc/tool/surfServer.py
+++ b/compile/remote-compile/lbc/tool/surfServer.py
@@ -65,7 +65,9 @@ def __init__(self):
 
     def cmd(self, cmds):
         p = Popen(shlex.split(cmds), stdout=PIPE, stderr=PIPE)
-        return p.stdout.read().decode() + p.stderr.read().decode()
+        # return p.stdout.read().decode() + p.stderr.read().decode()
+        stdout, stderr = p.communicate()
+        return stdout.decode() + stderr.decode()
 
     def system(self, cmds):
         cmds = cmds.replace('\0', '').strip()