A solid free-flowing particulate laundry detergent composition including: (a) from 0.1 wt % to 5 wt % polymer particle comprising: (i) from 70 wt % to 90 wt % co-polymer and (ii) from 10 wt % to 30 wt % salt; and (b) from 35 wt % to 80 wt % spray-dried particle including: (i) from 8 wt % to 24 wt % alkyl benzene sulphonate anionic detersive surfactant; (ii) from 5 w % to 18 wt % silicate salt; (iii) from 0 wt % to 10 wt % sodium carbonate; and (iv) from 0 wt % to 5 wt % carboxylate polymer.