diff --git a/types/pixelmatch/index.d.ts b/types/pixelmatch/index.d.ts
index acf90a014b..707580d38e 100644
--- a/types/pixelmatch/index.d.ts
+++ b/types/pixelmatch/index.d.ts
@@ -2,15 +2,16 @@
 // Project: https://github.com/mapbox/pixelmatch#readme
 // Definitions by: Oleg Repin <https://github.com/iamolegga>
 //                 Piotr Błażejewicz <https://github.com/peterblazejewicz>
+//                 Damian Frizzi <https://github.com/damianfrizzi>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 /// <reference types="node" />
 
 declare function Pixelmatch(
     /** Image data of the first image to compare. Note: image dimensions must be equal. */
-    img1: Buffer | Uint8Array,
+    img1: Buffer | Uint8Array | Uint8ClampedArray,
     /** Image data of the second image to compare. Note: image dimensions must be equal. */
-    img2: Buffer | Uint8Array,
+    img2: Buffer | Uint8Array | Uint8ClampedArray,
     /** Image data to write the diff to, or null if don't need a diff image. */
     output: Buffer | Uint8Array | null,
     /** Width of the images. Note that all three images need to have the same dimensions. */