diff --git a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_block_content_body_field.yml b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_block_content_body_field.yml
index b11d0c5..08935ee 100644
--- a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_block_content_body_field.yml
+++ b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_block_content_body_field.yml
@@ -29,3 +29,4 @@ dependencies:
   module:
     - block_content
     - field
+    - migrate_drupal
diff --git a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_block_content_type.yml b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_block_content_type.yml
index f4617bc..f055a61 100644
--- a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_block_content_type.yml
+++ b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_block_content_type.yml
@@ -17,3 +17,4 @@ destination:
 dependencies:
   module:
     - block_content
+    - migrate_drupal
diff --git a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_upload_field.yml b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_upload_field.yml
index a01bd0d..15df33a 100644
--- a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_upload_field.yml
+++ b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_upload_field.yml
@@ -25,4 +25,5 @@ dependencies:
   module:
     - field
     - file
+    - migrate_drupal
     - node
diff --git a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_user_picture_field.yml b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_user_picture_field.yml
index 0a45412..eefb62d 100644
--- a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_user_picture_field.yml
+++ b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_user_picture_field.yml
@@ -22,4 +22,5 @@ dependencies:
   module:
     - field
     - image
+    - migrate_drupal
     - user
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 56ba960..2f23e0c 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
@@ -369,3 +369,7 @@ migrate_entity_constant:
     auto_create:
       type: boolean
       label: 'Entity reference selection setting: Auto-create new entities'
+
+migrate.source.md_empty:
+  type: migrate.source.empty
+  label: 'Empty source for migrate_drupal migrations'