diff --git a/core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php b/core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php
index 8f85a77..fdd4238 100644
--- a/core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php
+++ b/core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php
@@ -461,20 +461,6 @@ protected function getCache() {
   /**
    * {@inheritdoc}
    */
-  public function calculateDependencies() {
-    // Generic handling for source plugin constants.
-    if (isset($this->configuration['constants']['entity_type'])) {
-      $this->addDependency('module', \Drupal::entityManager()->getDefinition($this->configuration['constants']['entity_type'])->getProvider());
-    }
-    if (isset($this->configuration['constants']['module'])) {
-      $this->addDependency('module', $this->configuration['constants']['module']);
-    }
-    return $this->dependencies;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function getConfiguration() {
     return $this->configuration;
   }
diff --git a/core/modules/migrate_drupal/src/Plugin/migrate/source/DrupalSqlBase.php b/core/modules/migrate_drupal/src/Plugin/migrate/source/DrupalSqlBase.php
index 044dc61..cc6f86b 100644
--- a/core/modules/migrate_drupal/src/Plugin/migrate/source/DrupalSqlBase.php
+++ b/core/modules/migrate_drupal/src/Plugin/migrate/source/DrupalSqlBase.php
@@ -144,4 +144,18 @@ protected function variableGet($name, $default) {
     return $result !== FALSE ? unserialize($result) : $default;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function calculateDependencies() {
+    // Generic handling for Drupal source plugin constants.
+    if (isset($this->configuration['constants']['entity_type'])) {
+      $this->addDependency('module', \Drupal::entityManager()->getDefinition($this->configuration['constants']['entity_type'])->getProvider());
+    }
+    if (isset($this->configuration['constants']['module'])) {
+      $this->addDependency('module', $this->configuration['constants']['module']);
+    }
+    return $this->dependencies;
+  }
+
 }