diff --git a/driver.go b/driver.go
index 85ca142..f3b0bfd 100644
--- a/driver.go
+++ b/driver.go
@@ -330,7 +330,7 @@ func (d *iscsiDriver) mountVolume(v *iscsiVolume) error {
 	}
 
 	// Mount
-	cmd = "mount " + device + " " + v.Mountpoint
+	cmd = "mount -o discard " + device + " " + v.Mountpoint
 	out, errMsg = util.ExecuteCommandString(cmd)
 
 	if len(out) > 0 {