diff --git a/core/modules/comment/config/schema/comment.schema.yml b/core/modules/comment/config/schema/comment.schema.yml
index 72d0a2d..b835af0 100644
--- a/core/modules/comment/config/schema/comment.schema.yml
+++ b/core/modules/comment/config/schema/comment.schema.yml
@@ -57,8 +57,12 @@ comment.type.*:
       label: 'Description'
 
 field.storage_settings.comment:
-  type: sequence
+  type: mapping
   label: 'Comment settings'
+  mapping:
+    comment_type:
+      label: 'Comment type'
+      type: string
 
 field.value.comment:
   type: sequence
diff --git a/core/modules/datetime/config/schema/datetime.schema.yml b/core/modules/datetime/config/schema/datetime.schema.yml
index 04effbd..238501d 100644
--- a/core/modules/datetime/config/schema/datetime.schema.yml
+++ b/core/modules/datetime/config/schema/datetime.schema.yml
@@ -22,7 +22,7 @@ field.value.datetime:
         default_date_type:
           type: string
           label: 'Default date type'
-        defult_date:
+        default_date:
           type: string
           label: 'Default date value'