The present invention refers to the use of a calcium carbonate-based composition as an anticaking agent, wherein the calcium carbonate-based composition comprises a first component being a natural ground calcium carbonate or a precipitated calcium carbonate, and a second component being a surface-reacted calcium carbonate, wherein the surface-reacted calcium carbonate is a reaction product of natural ground calcium carbonate or precipitated calcium carbonate with carbon dioxide and at least one H3O+ ion donor, wherein the carbon dioxide is formed in situ by the at least one H3O+ ion donor treatment and/or is supplied from an external source. Furthermore, the present invention refers to a particulate composition comprising such an anticaking agent, and to a method for producing such a particulate composition.