diff --git a/types/heredatalens/index.d.ts b/types/heredatalens/index.d.ts
index 9b3ff44431..3499b6e9ca 100644
--- a/types/heredatalens/index.d.ts
+++ b/types/heredatalens/index.d.ts
@@ -618,7 +618,7 @@ declare namespace H {
             /**
              * A factory method for data-driven icons. The method allows you to build an icon from SVG markup or JsonML object. Provides caching of icons with the same markup.
              * @param svg {string | Array} - SVG presented as markup or JsonML Array
-             * @param options {H.map.Icon.Options} - Icon options (eg size and anchor). Note that the default anchor is in the middle.
+             * @param options {H.map.Icon.Options=} - Icon options (eg size and anchor). Note that the default anchor is in the middle.
              * @param options.size {H.math.ISize | number} - When the icon is a square, you can define the size as a number in pixels
              * @returns {H.map.Icon} - Icon which can be used for marker or cluster
              */