diff --git a/docs/pages/api-docs/swipeable-drawer.md b/docs/pages/api-docs/swipeable-drawer.md
index eea52653a1d2d8..4c249089a2ed7a 100644
--- a/docs/pages/api-docs/swipeable-drawer.md
+++ b/docs/pages/api-docs/swipeable-drawer.md
@@ -36,7 +36,7 @@ You can learn more about the difference by [reading this guide](/guides/minimizi
 | <span class="prop-name required">onOpen<abbr title="required">*</abbr></span> | <span class="prop-type">func</span> |  | Callback fired when the component requests to be opened.<br><br>**Signature:**<br>`function(event: object) => void`<br>*event:* The event source of the callback. |
 | <span class="prop-name required">open<abbr title="required">*</abbr></span> | <span class="prop-type">bool</span> |  | If `true`, the drawer is open. |
 | <span class="prop-name">SwipeAreaProps</span> | <span class="prop-type">object</span> |  | The element is used to intercept the touch events on the edge. |
-| <span class="prop-name">swipeAreaWidth</span> | <span class="prop-type">number</span> | <span class="prop-default">20</span> | The width of the left most (or right most) area in px where the drawer can be swiped open from. |
+| <span class="prop-name">swipeAreaWidth</span> | <span class="prop-type">number</span> | <span class="prop-default">20</span> | The width of the left most (or right most) area in px that the drawer can be swiped open from. |
 | <span class="prop-name">transitionDuration</span> | <span class="prop-type">number<br>&#124;&nbsp;{ appear?: number, enter?: number, exit?: number }</span> | <span class="prop-default">{ enter: duration.enteringScreen, exit: duration.leavingScreen }</span> | The duration for the transition, in milliseconds. You may specify a single timeout for all transitions, or individually with an object. |
 
 The `ref` is forwarded to the root element.
diff --git a/packages/material-ui/src/SwipeableDrawer/SwipeableDrawer.d.ts b/packages/material-ui/src/SwipeableDrawer/SwipeableDrawer.d.ts
index f0e58bebcf0ecc..478e0a31781e43 100644
--- a/packages/material-ui/src/SwipeableDrawer/SwipeableDrawer.d.ts
+++ b/packages/material-ui/src/SwipeableDrawer/SwipeableDrawer.d.ts
@@ -55,8 +55,8 @@ export interface SwipeableDrawerProps extends Omit<DrawerProps, 'onClose' | 'ope
    */
   SwipeAreaProps?: object;
   /**
-   * The width of the left most (or right most) area in px where the
-   * drawer can be swiped open from.
+   * The width of the left most (or right most) area in px that
+   * the drawer can be swiped open from.
    * @default 20
    */
   swipeAreaWidth?: number;
diff --git a/packages/material-ui/src/SwipeableDrawer/SwipeableDrawer.js b/packages/material-ui/src/SwipeableDrawer/SwipeableDrawer.js
index 38c31d6f02ac0f..66d7bb255a32f5 100644
--- a/packages/material-ui/src/SwipeableDrawer/SwipeableDrawer.js
+++ b/packages/material-ui/src/SwipeableDrawer/SwipeableDrawer.js
@@ -648,8 +648,8 @@ SwipeableDrawer.propTypes = {
    */
   SwipeAreaProps: PropTypes.object,
   /**
-   * The width of the left most (or right most) area in px where the
-   * drawer can be swiped open from.
+   * The width of the left most (or right most) area in px that
+   * the drawer can be swiped open from.
    * @default 20
    */
   swipeAreaWidth: PropTypes.number,