diff --git a/src/FacetSource/FacetSourcePluginManager.php b/src/FacetSource/FacetSourcePluginManager.php
index 4f4146a..960f86a 100644
--- a/src/FacetSource/FacetSourcePluginManager.php
+++ b/src/FacetSource/FacetSourcePluginManager.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\facets\FacetSource;
 
+use Drupal\Component\Plugin\Exception\PluginException;
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Plugin\DefaultPluginManager;
@@ -22,4 +23,17 @@ class FacetSourcePluginManager extends DefaultPluginManager {
     parent::__construct('Plugin/facets/facet_source', $namespaces, $module_handler, 'Drupal\facets\FacetSource\FacetSourcePluginInterface', 'Drupal\facets\Annotation\FacetsFacetSource');
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function processDefinition(&$definition, $plugin_id) {
+    parent::processDefinition($definition, $plugin_id);
+
+    foreach (['id', 'label', 'description','display_id'] as $required_property) {
+      if (empty($definition[$required_property])) {
+        throw new PluginException(sprintf('The facet source plugin %s must define the %s property.', $plugin_id, $required_property));
+      }
+    }
+  }
+
 }