An Austrian man was tossed in jail for posting a series of Nazi-inspired photos on social media – including one of a cat making a Hitler-like salute, according to The Local.

The unidentified 38-year-old from Flachgau in the state of Salzburg was found guilty Thursday under the Nazi Prohibition Act – a 1947 Austrian constitutional law that prohibits all neo-Nazi or anti-Semitic activities – for posting the 20 online images.

The photos – posted over a two year period – include many that make references to the Nazi’s murderous use of gas chambers, the website reported.

One photo showed a cat that had been apparently positioned to make the infamous salute to the Nazi dictator.

“It is not about a single photo but rather an impression of the overall context,” said state prosecutor Markus Neher, according to The Local.

The man pleaded guilty to the charges and even apologized in court. He was sentenced to 18 months in jail – 15 of which are suspended, the report said.

Police who searched the man’s home also found clothing with Nazi symbols on them.

Cats bearing an uncanny resemblance to Adolf Hitler have sparked an Internet craze. There is even a website dedicated to the phenomenon called, CatsThatLookLikeHitler.com.