diff --git a/core/modules/migrate/config/schema/migrate.source.schema.yml b/core/modules/migrate/config/schema/migrate.source.schema.yml
index 3c533f0..c562ba2 100644
--- a/core/modules/migrate/config/schema/migrate.source.schema.yml
+++ b/core/modules/migrate/config/schema/migrate.source.schema.yml
@@ -1,5 +1,9 @@
 # Schema for the migrate source plugins.
 
+migrate.source.*:
+  type: migrate_source
+  label: 'Default source'
+
 migrate.source.empty:
   type: migrate_source_sql
   label: 'Drupal 6 field formatter'
diff --git a/core/modules/migrate_drupal/config/schema/migrate_drupal.source.schema.yml b/core/modules/migrate_drupal/config/schema/migrate_drupal.source.schema.yml
index ad1a260..5cd5619 100644
--- a/core/modules/migrate_drupal/config/schema/migrate_drupal.source.schema.yml
+++ b/core/modules/migrate_drupal/config/schema/migrate_drupal.source.schema.yml
@@ -1,9 +1,5 @@
 # Schema for the migrate_drupal source plugins.
 
-migrate.source.*:
-  type: migrate_source
-  label: 'Default source'
-
 migrate.source.variable:
   type: migrate_source_sql
   label: 'Variable'
@@ -111,7 +107,7 @@ migrate.source.d6_taxonomy_vocabulary_per_type:
 
 migrate.source.d6_field:
   type: migrate_source_sql
-  label: 'Drupal 6 box'
+  label: 'Drupal 6 field'
   mapping:
     constants:
       type: migrate_entity_constant
@@ -119,7 +115,7 @@ migrate.source.d6_field:
 
 migrate.source.variable_multirow:
   type: migrate_source_sql
-  label: 'Drupal 6 box'
+  label: 'Drupal variable multirow'
   mapping:
     variables:
       type: sequence