diff --git a/src/math/Vector2.d.ts b/src/math/Vector2.d.ts
index 75327683df39b3b791f5ac16507d2dbbe362d96a..c95d014dfa779c4868ab15feb4e6103ec4f9ad97 100644
--- a/src/math/Vector2.d.ts
+++ b/src/math/Vector2.d.ts
@@ -305,6 +305,11 @@ export class Vector2 implements Vector {
    */
   dot(v: Vector2): number;
 
+  /**
+   * Computes cross product of this vector and v.
+   */
+  cross(v: Vector2): number;
+
   /**
    * Computes squared length of this vector.
    */