after lvreduce : Either the superblock or the partition table is likely to be corrupt!

[FM <dist-list LEXUM UMontreal CA>]

Hello,
TO reduce shrink a lvm volume, I used :
 umount filesystem
e2fsck -f filesystem
resize2fs (offline disk resize)
lvreduce

everything seems to be find :
lvdisplay show me the new size and if I mount the filseystem I saw the 
new size. But if I have use fsck to check the fs I have :
The filesystem size (according to the superblock) is 432537600 blocks
The physical size of the device is 430511104 blocks
Either the superblock or the partition table is likely to be corrupt!

Was it the good technic to  reduce a lvm filsystem ?
Can I recover from this error ?


thanks!