diff --git a/bsp/simulator/rtconfig.py b/bsp/simulator/rtconfig.py
index da63b843e..38d346fce 100755
--- a/bsp/simulator/rtconfig.py
+++ b/bsp/simulator/rtconfig.py
@@ -52,7 +52,7 @@ if PLATFORM == 'gcc':
     else:
         CFLAGS += ' -O2'
 
-    POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
+    POST_ACTION = ''
 
 elif PLATFORM == 'cl':
     # toolchains