Error message when creating md5sums

[CrashOver]

Hi..
I create md5sums of my remaster:

rm -f KNOPPIX/md5sums; find -type f -not -name md5sums -not -name boot.cat -not -name isolinux.bin -exec md5sum '{}'\; >> KNOPPIX/md5sums

then i get error message:

find: missing argument to 'exec'

I think I have type it corectly.
Where is the error?
Thanks for all helps.

[ockham23]

I think there is a typo in "'{}'\;". Simply copy and paste the line from the remastering how-to.

[cluzterix]

I think there is a typo in "'{}'\;". Simply copy and paste the line from the remastering how-to.

thanks ockham23