diff --git a/tools/verification/dot2/dot2k b/tools/verification/dot2/dot2k
index 9dcd38abe20a..d4d7e52d549e 100644
--- a/tools/verification/dot2/dot2k
+++ b/tools/verification/dot2/dot2k
@@ -15,8 +15,6 @@ if __name__ == '__main__':
     import os
     import platform
     import sys
-    import sys
-    import argparse
 
     parser = argparse.ArgumentParser(description='transform .dot file into kernel rv monitor')
     parser.add_argument('-d', "--dot", dest="dot_file", required=True)