diff --git a/contrib/fuzz/fm1readmarkers_corpus.py b/contrib/fuzz/fm1readmarkers_corpus.py
--- a/contrib/fuzz/fm1readmarkers_corpus.py
+++ b/contrib/fuzz/fm1readmarkers_corpus.py
@@ -1,7 +1,6 @@
 from __future__ import absolute_import, print_function
 
 import argparse
-import os
 import zipfile
 
 ap = argparse.ArgumentParser()