Madame Tussaud's, a British company, defended its decision on Monday, July 7 to persist with the display against widespread criticism from Germans.
"Hitler represents a decisive part of Berlin's history which we can't just pretend did not happen," the company said in a statement.
A 41-year-old man broke the head off the figure after he had been egged on by drinking mates in a bar.
German public broadcaster ARD said Tussaud's was likely to improve security at the amusement on Berlin's Unter den Linden boulevard.
No call for speedy repairs
But a leader of Germany's main Jewish group said Monday he saw no pressing need to repair the figure.
"I would not be unhappy if the effigy did not come back," said Stephen Kramer, general secretary of the Central Council of Jews.
Public figures have been careful not to directly acclaim the attack by Frank L., who faces a criminal damage charge. The self-confessed attacker has told German newspapers he once worked as a policeman in Berlin, but decided that work did not suit his punk-music-influenced lifestyle. He was unemployed for several years before being trained to care for old people in a home.
He said friends in a bar had discussed wrecking the effigy and he had boasted he would do it, leaving him little choice. He said he spent hours plucking up courage to carry out the attack. Police have not confirmed if the barroom motive is true.
Many Germans were upset that Hitler was included in a commercial amusement close to the Holocaust Memorial and other memory sites. The real Adolf Hitler committed suicide in his bunker close by in 1945.
Hitler's wax model is to return to the Madame Tussauds museum in Berlin, Germany after getting its head ripped off by a 41-year old man who was arrested but subsequently released.

At the grand opening of the museum, the man, currently only known as Frank L., pushed aside two officers who were protecting the exhibit. Yelling "No more war!", he proceeded to rip off the wax sculpture's head.

The man was arrested but later released pending investigation. He told the German newspaper Bild am Sonntag he was angry about the exhibit. It has been reported that he had committed the act to win a bet started by his friends at a bar.

The waxwork was criticized around Germany where, generally, Nazi memorabilia or symbols are banned. Critics have argued that it is inappropriate to display a person who started a world war, but the museum has noted that Hitler was an important figure in German history.

The museum has announced its intentions to reinstate the €200,000 (£160,000) model after repairs, which could take weeks.