The terrorist attacks in Paris are already affecting tourism and many popular American stocks with enticing dividends will lose money as travelers cancel trips and rethink their plans. Now is the time to sell these popular dividend stocks before they fall.

The terrorist attack in Paris earlier this month was a tragedy.

And while the mantra has historically been, “Buy when there’s blood in the streets,” now is not the time to be a hero.

In particular, it might be too early to buy European stocks that sold off for cheap. And more importantly, you should rethink your “flight to safety” trade, which likely includes owning dividend stocks amidst the uncertainty.

Travel in Europe will be under pressure for some time and Americans were urged to be careful when traveling over Thanksgiving. Just this week the U.S. State Department issued a travel warning for the entire planet. Sure, some countries like Iraq, Somalia, and Haiti are pretty much always on the list, but I can’t even recall the last time the State Department issued a worldwide travel warning.

The French President has already issued a three-month State of Emergency for France. And, French intelligence has said their data suggests we could see more terror attacks in the country or other parts of Europe. Bookings for Europe during the Christmas period are already lagging last year by a healthy percentage and cancellations are spiking. Reuters reports that in the seven days after the November 13th Paris attack new flight bookings to Paris fell 27 percent compared to the same period a year ago.

The takeaway is that the tragedy in Paris and threat of future terrorist attacks will put pressure on a number of companies operating in Europe, in particular, anything travel related.

And while dividends are generally a flight to safety trade, even seemingly healthy dividends won’t ease the pain of a falling stock price.

With that, here are three classes of dividends to sell now: