diff --git a/syncplay/players/mpc.py b/syncplay/players/mpc.py
index 7dd9bd29..05150dd2 100755
--- a/syncplay/players/mpc.py
+++ b/syncplay/players/mpc.py
@@ -283,6 +283,7 @@ def OnCopyData(self, hwnd, msg, wparam, lparam):
             pCDS = ctypes.cast(lparam, self.__PCOPYDATASTRUCT)
             # print "API:\tin>\t 0x%X\t" % int(pCDS.contents.dwData), ctypes.wstring_at(pCDS.contents.lpData)
             self.__mpcApi.handleCommand(pCDS.contents.dwData, ctypes.wstring_at(pCDS.contents.lpData))
+            return 0
 
         def SendCommand(self, cmd, message=''):
             # print "API:\t<out\t 0x%X\t" % int(cmd), message
@@ -522,4 +523,4 @@ def getExpandedPath(path):
                 return path
             elif os.path.isfile(path + "\\" +  mpc_executable_filename):
                 path += "\\" + mpc_executable_filename
-                return path
\ No newline at end of file
+                return path