During refit, "Normandie" was modified to reduce vibration. Her three-bladed screws were replaced with four-bladed ones, and structural modifications were made to her lower aft section. These modifications reduced vibration at speed. In July 1937 she regained the Blue Riband, but "Queen Mary" took it back next year. After this the captain of "Normandie" sent a message saying, "Bravo to the "Queen Mary" until next time!" This rivalry could have gone on into the 1940s, but was ended by the Second World War.