North Korea says it's more than happy to take part in further talks with the USA but only if the latter displays the "right attitude".
Kim Jong-un said that was the only way he would agree to take part in a third summit with US President Donald Trump.
The comments were reported by North Korean state media on Saturday.
Kim urged Trump to agree to a deal that was "mutually acceptable" for both sides.
The leaders have met twice so far, once in Singapore last year and a second time in Hanoi in February.
However, the latest talks in Vietnam were cut short over denuclearisation steps.

China-North Korea bridge opens 12 years after completion
DR Congo Ebola death toll passes 4,400 in record-breaking outbreak
Saudi-led coalition intercepts drone over Eastern Region
Ukraine accuses SpaceX of crippling drone missions as ties with US worsen
Kenya reports second Ebola case, family member of first patient