diff --git a/res/css/views/dialogs/_SettingsDialog.scss b/res/css/views/dialogs/_SettingsDialog.scss
index 840ddb0a09..16c282ce58 100644
--- a/res/css/views/dialogs/_SettingsDialog.scss
+++ b/res/css/views/dialogs/_SettingsDialog.scss
@@ -44,7 +44,7 @@ limitations under the License.
             margin-bottom: 24px;
         }
         .mx_Dialog_fixedWidth {
-            width: 90vw;
+            width: 100%;
         }
     }
 }