Russian media have been poking fun at the US secretary of state over a translation error on a gift she presented to her Russian counterpart.
Hillary Clinton gave Sergei Lavrov a mock "reset" button, symbolising US hopes to mend frayed ties with Moscow.
But he said the word the Americans chose, "peregruzka", meant "overloaded" or "overcharged", rather than "reset".
Daily newspaper Kommersant declared on its front page: "Sergei Lavrov and Hillary Clinton push the wrong button."
Relations between Washington and Moscow have cooled in recent years over Russia's role in the war in Georgia, US support for the entry of Georgia and Ukraine to Nato, and the planned US missile shield based in central Europe.
'Was it right?'
Efforts to heal the rift got off to an awkward start on Friday as the two sides met in Geneva, when Mrs Clinton presented Foreign Minister Lavrov with a green box tied in green ribbon.
As reporters watched, the US secretary of state assured her Russian opposite number her staff had "worked hard" to ensure it was accurate.
"Was it right?" she inquired with a smile.
"You got it wrong," Mr Lavrov responded, also smiling, before pointing out the mistake.