It's the symbol recognised above all others on Australia Day, but not everyone feels the Australian flag is quite, well, Aussie enough.
Ausflag, a not-for-profit organisation, has unveiled a new Australian 'sporting flag' it believes is distinctive and patriotic enough for supporters to wave at international events without fear of being confused for a British colony.
The flag retains the stars of the southern cross and the royal blue background, but replaces the union jack with two vertical stripes of green and gold.
Ausflag chairman and former National Party minister Robert Webster said Australians hid behind cartoon boxing kangaroos at sporting matches and needed a flag they could fly proudly.
'A flag that tells the world we are Australians, not some British Branch Office, still clutching at the skirts of Mother England,' he said in a statement on Thursday.
'A flag which confuses no one.'
Mr Webster said it was 'beyond absurd' that Australia flew the union jack at the Commonwealth Games when England, Scotland, Wales and Northern Ireland all raised their own unique flags.
An incident at the London Olympic Games last year when England, Australia and New Zealand all raised their flags during a medal ceremony was 'like Mother England teaching her kids how to fly', he added.
Mr Webster insisted the AusFlag campaign was not anti-British but 'passionately pro-Australian', and no different to when Advance Australia Fair replaced God Save the Queen as the national anthem.