diff --git a/test/inhfd/fifo.py b/test/inhfd/fifo.py
index 2d20e4dbf..1c72ea96d 100755
--- a/test/inhfd/fifo.py
+++ b/test/inhfd/fifo.py
@@ -15,7 +15,6 @@ def create_fds():
     os.system("umount -l %s" % tdir)
     os.rmdir(tdir)
 
-    mnt_id = -1
     with open("/proc/self/fdinfo/%d" % fd1.fileno()) as f:
         for line in f:
             line = line.split()