The present invention is related to a dishwashing, preferably an automatic dishwashing, composition, wherein the composition comprises a 1,3,4-thiadiazole having the formula (I), wherein R1 = C1–C18
hydrocarbon moiety, NR3R4
moiety, S-R5
moiety, S-S-R6 moiety, H, S- anion with a
counterion; wherein R3, R4, R5, and R6 can be identical or different; wherein R3, R4, R5, and R6 = H, C1–C18
hydrocarbon moiety; R2 = C1–C18
hydrocarbon moiety, NR3R4 moiety, S-R5 moiety, S-S-R6 moiety, H, S- anion with a
counterion; wherein R3, R4, R5, and R6 can be identical or different; wherein R3, R4, R5, and R6 = H, C1-C18 hydrocarbon moiety; and wherein said two moieties R1 and R2 are identical or different. The invention further relates to the use of such an inventive dishwashing, preferably an automatic dishwashing, composition for silver
corrosion protection of silver dishwashing goods; wherein preferably said dishwashing, preferably said automatic dishwashing, composition is a detergent composition or a rinse aid composition.