diff --git a/src/components/duration.tsx b/src/components/duration.tsx
index d20237e4..f5b6fbc2 100644
--- a/src/components/duration.tsx
+++ b/src/components/duration.tsx
@@ -6,8 +6,7 @@ import { formatDuration } from '../../v2';
  * Output a string duration from a number of seconds
  *
  * @param {number} props.durationS - The number of seconds.
- * @param {number} props.durationMs - The number of seconds. DEPRECATED: The "Ms" suffix is incorrect, use props.durationS instead.
  */
-export function Duration(props: {durationMs: number, durationS: number}) {
-    return <span>{formatDuration(props.durationMs || props.durationS, 2)}</span>;
+export function Duration(props: {durationS: number}) {
+    return <span>{formatDuration(props.durationS, 2)}</span>;
 }