diff --git a/core/modules/system/templates/details.html.twig b/core/modules/system/templates/details.html.twig
index d69c0c1..d7e4156 100644
--- a/core/modules/system/templates/details.html.twig
+++ b/core/modules/system/templates/details.html.twig
@@ -8,7 +8,8 @@
  * - errors: (optional) Any errors for this details element, may not be set.
  * - title: (optional) The title of the element, may not be set.
  * - description: (optional) The description of the element, may not be set.
- * - description_display: (optional) Description display setting. It can have these values:
+ * - description_display: (optional) Description display setting. It can have
+ *   these values:
  *   - before: The description is output before the element. This is the default
  *     value.
  *   - after: The description is output after the element.
diff --git a/core/themes/classy/templates/form/details.html.twig b/core/themes/classy/templates/form/details.html.twig
index bd6a415..f4184ce 100644
--- a/core/themes/classy/templates/form/details.html.twig
+++ b/core/themes/classy/templates/form/details.html.twig
@@ -8,7 +8,8 @@
  * - errors: (optional) Any errors for this details element, may not be set.
  * - title: (optional) The title of the element, may not be set.
  * - description: (optional) The description of the element, may not be set.
- * - description_display: (optional) Description display setting. It can have these values:
+ * - description_display: (optional) Description display setting. It can have
+ *   these values:
  *   - before: The description is output before the element. This is the default
  *     value.
  *   - after: The description is output after the element.