A low-foaming herbicidal composition comprises glyphosate and a poly(alkylene oxide)alkanol having the formula R1R2CH—R3—(OR4)n—OH (I) wherein R1 and R2 are methyl or ethyl, R3 is a straight chain alkylene group containing from 5 to 12 carbon atoms, R4 is an alkylene group containing 2 or 3 carbon atoms and n is from 4 to 20. Especially preferred is ethoxylated, propoxylated or mixed alkoxylated/propoxylated iso-tridecyl alcohol wherein the degree of alkoxylation is from 6 to 14, for example iso-tridecyl alcohol having 8 polyethylene oxide units. Preferred compositions additionally contain an alkylglycoside.