diff --git a/src/skins/vector/css/matrix-react-sdk/views/dialogs/_UnknownDeviceDialog.scss b/src/skins/vector/css/matrix-react-sdk/views/dialogs/_UnknownDeviceDialog.scss
index 579e38524..804b3f419 100644
--- a/src/skins/vector/css/matrix-react-sdk/views/dialogs/_UnknownDeviceDialog.scss
+++ b/src/skins/vector/css/matrix-react-sdk/views/dialogs/_UnknownDeviceDialog.scss
@@ -54,7 +54,7 @@ limitations under the License.
     margin-right: 8px;
     padding-left: 0.5em;
     padding-right: 0.5em;
-    width: 70px;
+    width: 85px;
     outline: none;
     cursor: pointer;
     color: $accent-color;