diff --git a/lib/vdsm/storage/lvm.py b/lib/vdsm/storage/lvm.py
index b8c3122ef..35933a580 100644
--- a/lib/vdsm/storage/lvm.py
+++ b/lib/vdsm/storage/lvm.py
@@ -1799,7 +1799,7 @@ def reduceLV(vgName, lvName, size_mb, force=False):
         cmd += ("--force",)
     cmd += ("--size", "%sm" % (size_mb,), "%s/%s" % (vgName, lvName))
     if lvm_version >= (2, 3, 17):
-        cmd += ("--fs", "ignore",)
+        cmd += ("--fs", "ignore")
 
     try:
         _lvminfo.run_command(cmd, devices=_lvminfo._getVGDevs((vgName,)))