diff --git a/script/generate_param.py b/script/generate_param.py
index 5fa3c193a2c..4580f096c8b 100644
--- a/script/generate_param.py
+++ b/script/generate_param.py
@@ -21,12 +21,8 @@
 #  License along with this library; if not, see <http://www.gnu.org/licenses/>.
 #
 
-import errno
 import os
-import re
-import subprocess
 import xml.etree.ElementTree as ET
-import sys
 import optparse
 
 # parse command line arguments