diff --git a/types/sass/index.d.ts b/types/sass/index.d.ts
index 0131836143..bd416d9718 100644
--- a/types/sass/index.d.ts
+++ b/types/sass/index.d.ts
@@ -136,6 +136,11 @@ export interface SassException extends Error {
      */
     message: string;
 
+    /**
+     * The formatted error.
+     */
+    formatted: string;
+
     /**
      * The line number of error.
      */