Lorem IpsumDominum

Hi, welcome to my blog.
I am interested in learning about everything.
I am using this blog mostly as a way to store pieces of
my writing, so I could share with people easily(By link),
and access it myself remotely.

"Ipsum Dominum" is supposed to mean "master of himself". 
Meant to be inspired by the slave gladiator Spartacus. 
Who became his own master upon defeating legions of the 
Roman empire in successful revolt.

Till this day I am still not sure if it was correct 
to conjugate "Dominus" into the accusative "Dominum",
with "Ipsum" not being a possesive pronoun.