A foreigner was recently blocked from boarding a flight from Thailand to Malaysia because their passport contained a novelty Machu Picchu stamp.
The incident, which recently went viral online, was officially addressed by the Thai government's Anti-Fake News Center. According to the official clarification, Thai Immigration officers correctly denied the traveler boarding because the unofficial souvenir stamp rendered the passport invalid for international travel.
While collecting novelty stamps at famous tourist sites like Machu Picchu, Checkpoint Charlie, or Antarctica is popular, placing them inside an official government-issued passport technically constitutes defacing the document.
What this means for you
If you are an expat living in Thailand or a frequent traveler, your passport must remain free of any unofficial markings.
- Check your pages: Review your current passport for any novelty stamps, stickers, or unofficial markings.
- Replace if necessary: If you already have a souvenir stamp in your passport, you should apply for a new passport at your embassy before your next international trip.
- Use a journal: Keep all future novelty stamps in a dedicated travel journal or notebook, never in your official travel documents.
Airlines and immigration officers worldwide have the authority to deny boarding or entry if a passport is deemed altered. While enforcement can sometimes be inconsistent, this recent case at Thai Immigration proves that officers will enforce the rule, potentially leaving you stranded at the airport and out the cost of a flight.

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