The present invention relates to a novel cocrystal compound of 5-chloro-N-({(5S)-2-oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-1,3-oxazolidin-5-yl}methyl)-2-thiophenecarboxamide (rivaroxaban) and malonic acid, to processes for its preparation, to medicaments comprising this compound and to their use for controlling diseases.