Hours after the government rolled out its "It's more Fun in the Philippines" campaign, Internet pundits pointed to a 1951 Swiss National Tourist Office ad which proclaimed "It's more fun in Switzerland!"
Dennis Gorecho, who described himself as a Manila lawyer, criticized the tourism department for spending a large amount of money on a copycat ad and linked to a website of the old Swiss poster.
"DOT (the Department of Tourism) spent millions ---- to come up with an ad campaign that seemed to have been used from one that is already more than 60 years old ----" he wrote on his wall on the social networking site Facebook.
However Tourism Secretary Ramon Jimenez and other officials swiftly rejected the new copycat allegations.
"The line isn't a manufactured slogan. It's simply the truth about our country. Don't be swayed by people who are trying to punch holes in it," Jimenez tweeted.
"If you look hard enough, you might even find an old ad that says 'it's more fun in Alcatraz!'" he added, referring to the notorious former US prison.
"Uh, ok, so Switzerland used 'It's more fun--' in 1951 . That's 61 yrs ago. Even intellectual property rights expire after 50 yrs," Finance Secretary Cesar Purisima said, repeating another lawyer's Twitter comment.
Other critics said they preferred the old slogan "Wow! Philippines".
"It may be true that its more fun in the Philippines but Wow Philippines was a far better tourism slogan," one tweeted.
The Philippine campaign's hashtag, "#ItsMoreFunInThePhilippines", itself became one of the top trending topics on Twitter.
In November 2010 the Philippine government was forced to scrap a similar campaign that turned into a marketing disaster amid allegations it plagiarized a Polish campaign.
Despite many natural wonders and more than 7,000 islands, the Philippines has long lagged behind its Southeast Asian neighbors in attracting tourists.
Poor infrastructure, corruption and poverty are the some of the factors holding back the country's tourism industry.