diff --git a/src/data/types.js b/src/data/types.js
index 69182ce..fa485b7 100644
--- a/src/data/types.js
+++ b/src/data/types.js
@@ -41,7 +41,7 @@
  * @property {string} commands[].keypresses[].keystroke single human-readable key or key chord press
  * @property {string} [commands[].extraInstruction] human-readable additional instruction to follow
  * @property {string} [commands[].settings] this property only exists on v2 tests
- * @property {string} [commands[].additionalSettings] this property only exists on v2 tests
+ * @property {string[]} [commands[].additionalSettings] this property only exists on v2 tests
  * @property {object[]} assertions[]
  * @property {1 | 2} assertions[].priority
  * @property {string} [assertions[].expectation] assertion statement string, this property only exists on v1 tests
diff --git a/src/runner/driver-test-runner.js b/src/runner/driver-test-runner.js
index 91f06b0..86f9f44 100644
--- a/src/runner/driver-test-runner.js
+++ b/src/runner/driver-test-runner.js
@@ -92,7 +92,7 @@ export class DriverTestRunner {
    *
    * @param {string} settings - "browseMode" "focusMode" for NVDA, "pcCursor" "virtualCursor"
    *                 for JAWS., "defaultMode" for others.
-   * @param {string} additionalSettings - e.g. "speechRateIncrease" and "commentAnnouncementOn" for JAWS
+   * @param {string[]} additionalSettings - e.g. "speechRateIncrease" and "commentAnnouncementOn" for JAWS
    */
   async ensureSettings(settings, additionalSettings) {
     const { atName } = await this.collectedCapabilities;