diff --git a/res/css/views/dialogs/security/_AccessSecretStorageDialog.scss b/res/css/views/dialogs/security/_AccessSecretStorageDialog.scss
index 30b79c1a9a..ec3bea0ef7 100644
--- a/res/css/views/dialogs/security/_AccessSecretStorageDialog.scss
+++ b/res/css/views/dialogs/security/_AccessSecretStorageDialog.scss
@@ -28,6 +28,7 @@ limitations under the License.
         left: 0;
         top: 2px; // alignment
         background-image: url("$(res)/img/element-icons/warning-badge.svg");
+        background-size: contain;
     }
 
     .mx_AccessSecretStorageDialog_reset_link {