The present invention relates to an herbicidal composition comprising a. at least one ALS-inhibiting herbicide; b. at least one HPPD-inhibiting herbicide; c. at least one saturated or unsaturated fatty acid. The present invention further relates to a method of controlling weeds at a locus which comprise applying to the locus a diluted herbicidal composition according to the present invention. The present invention further relates to the use of a saturated or unsaturated fatty acid to chemically stabilise an herbicidal composition comprising at least one sulfonylurea herbicide and at least one HPPD-inhibiting herbicide.