diff --git a/core/modules/field/src/Plugin/migrate/source/d6/FieldInstancePerFormDisplay.php b/core/modules/field/src/Plugin/migrate/source/d6/FieldInstancePerFormDisplay.php
index a7b9fad..dca5f88 100644
--- a/core/modules/field/src/Plugin/migrate/source/d6/FieldInstancePerFormDisplay.php
+++ b/core/modules/field/src/Plugin/migrate/source/d6/FieldInstancePerFormDisplay.php
@@ -13,7 +13,8 @@
  * The field instance per form display source class.
  *
  * @MigrateSource(
- *   id = "d6_field_instance_per_form_display"
+ *   id = "d6_field_instance_per_form_display",
+ *   source_provider = "content"
  * )
  */
 class FieldInstancePerFormDisplay extends DrupalSqlBase {
diff --git a/core/modules/migrate/src/Plugin/migrate/builder/BuilderBase.php b/core/modules/migrate/src/Plugin/migrate/builder/BuilderBase.php
index b03078c..92a65be 100644
--- a/core/modules/migrate/src/Plugin/migrate/builder/BuilderBase.php
+++ b/core/modules/migrate/src/Plugin/migrate/builder/BuilderBase.php
@@ -24,7 +24,7 @@
    * @param array $configuration
    *   (optional) Additional configuration for the plugin.
    *
-   * @return \Drupal\migrate\Plugin\MigrateSourceInterface
+   * @return \Drupal\migrate\Plugin\MigrateSourceInterface|\Drupal\migrate\Plugin\RequirementsInterface
    *   The fully initialized source plugin.
    */
   protected function getSourcePlugin($plugin_id, array $configuration = []) {
diff --git a/core/modules/migrate_drupal/src/Plugin/migrate/builder/d6/CckMigration.php b/core/modules/migrate_drupal/src/Plugin/migrate/builder/d6/CckMigration.php
index e870808..30b739e 100644
--- a/core/modules/migrate_drupal/src/Plugin/migrate/builder/d6/CckMigration.php
+++ b/core/modules/migrate_drupal/src/Plugin/migrate/builder/d6/CckMigration.php
@@ -8,6 +8,8 @@
 namespace Drupal\migrate_drupal\Plugin\migrate\builder\d6;
 
 use Drupal\migrate\Entity\Migration;
+use Drupal\migrate\Exception\RequirementsException;
+use Drupal\migrate\Plugin\RequirementsInterface;
 use Drupal\migrate_drupal\Plugin\migrate\builder\CckBuilder;
 
 /**
@@ -28,8 +30,20 @@ class CckMigration extends CckBuilder {
   public function buildMigrations(array $template) {
     $migration = Migration::create($template);
 
+    $source_plugin = $migration->getSourcePlugin();
+    // The source plugin will throw RequirementsException if CCK is not enabled,
+    // in which case there is nothing else for us to do.
+    if ($source_plugin instanceof RequirementsInterface) {
+      try {
+        $source_plugin->checkRequirements();
+      }
+      catch (RequirementsException $e) {
+        return [$migration];
+      }
+    }
+
     // Loop through every field that will be migrated.
-    foreach ($migration->getSourcePlugin() as $field) {
+    foreach ($source_plugin as $field) {
       $field_type = $field->getSourceProperty('type');
 
       // Each field type should only be processed once.
diff --git a/core/modules/migrate_drupal/src/Tests/d6/CckMigrationBuilderTest.php b/core/modules/migrate_drupal/src/Tests/d6/CckMigrationBuilderTest.php
new file mode 100644
index 0000000..fd51c17
--- /dev/null
+++ b/core/modules/migrate_drupal/src/Tests/d6/CckMigrationBuilderTest.php
@@ -0,0 +1,51 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\migrate_drupal\Tests\d6\CckMigrationBuilderTest.
+ */
+
+namespace Drupal\migrate_drupal\Tests\d6;
+
+use Drupal\Core\Database\Database;
+
+/**
+ * @group migrate_drupal
+ */
+class CckMigrationBuilderTest extends MigrateDrupal6TestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['field'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $database = Database::getConnection('default', 'migrate');
+    $database
+      ->update('system')
+      ->fields(array('status' => 0))
+      ->condition('name', 'content')
+      ->condition('type', 'module')
+      ->execute();
+    $database->schema()->dropTable('content_node_field');
+    $database->schema()->dropTable('content_node_field_instance');
+  }
+
+  /**
+   * Tests that the CckMigration builder performs a requirements check on the
+   * source plugin.
+   */
+  public function testRequirementCheck() {
+    $template = \Drupal::service('migrate.template_storage')
+      ->getTemplateByName('d6_field');
+    // Without the requirements check, this will throw a \PDOException because
+    // the CCK tables do not exist.
+    \Drupal::service('migrate.migration_builder')->createMigrations([$template]);
+  }
+
+}
diff --git a/core/modules/node/src/Plugin/migrate/builder/d6/Node.php b/core/modules/node/src/Plugin/migrate/builder/d6/Node.php
index 4eaba23..ca97842 100644
--- a/core/modules/node/src/Plugin/migrate/builder/d6/Node.php
+++ b/core/modules/node/src/Plugin/migrate/builder/d6/Node.php
@@ -8,6 +8,7 @@
 namespace Drupal\node\Plugin\migrate\builder\d6;
 
 use Drupal\migrate\Entity\Migration;
+use Drupal\migrate\Exception\RequirementsException;
 use Drupal\migrate_drupal\Plugin\migrate\builder\CckBuilder;
 
 /**
@@ -23,9 +24,17 @@ public function buildMigrations(array $template) {
 
     // Read all CCK field instance definitions in the source database.
     $fields = array();
-    foreach ($this->getSourcePlugin('d6_field_instance', $template['source']) as $field) {
-      $info = $field->getSource();
-      $fields[$info['type_name']][$info['field_name']] = $info;
+    $source_plugin = $this->getSourcePlugin('d6_field_instance', $template['source']);
+    try {
+      $source_plugin->checkRequirements();
+
+      foreach ($source_plugin as $field) {
+        $info = $field->getSource();
+        $fields[$info['type_name']][$info['field_name']] = $info;
+      }
+    }
+    catch (RequirementsException $e) {
+      // Don't do anything; $fields will be empty.
     }
 
     foreach ($this->getSourcePlugin('d6_node_type', $template['source']) as $row) {