NATO Secretary General Mark Rutte cannot stop heaping praise on President Donald Trump’s foreign policy. The two appeared at a press event on Tuesday for the NATO summit currently underway at the Hague in the Netherlands.

The president headed back to Washington after securing a major policy change he’s pushed for since 2017 as most NATO countries agreed to significantly increase their defense spending.

But Rutte’s cuddly nickname for Trump raised eyebrows around the world and the NATO chief was forced to quickly walk it back. “The daddy thing,” Rutte explained, “I didn’t call [Trump] daddy, what I said, is that sometimes ... In Europe, I hear sometimes countries saying, ‘Hey, Mark, will the U.S. stay with us?’”