diff --git a/plugins/entity/comment.inc b/plugins/entity/comment.inc
index 8b5a0ee..68de46a 100644
--- a/plugins/entity/comment.inc
+++ b/plugins/entity/comment.inc
@@ -4,17 +4,19 @@
  * Definition of the comment plugin.
  */
 
-$plugin = array(
-  'handler' => 'PanelizerEntityComment',
-  'entity path' => 'comment/%',
-  'uses page manager' => FALSE,
-  'hooks' => array(
-    'menu' => TRUE,
-    'admin_paths' => TRUE,
-    'permission' => TRUE,
-    'panelizer_defaults' => TRUE,
-    'default_page_manager_handlers' => TRUE,
-    'form_alter' => TRUE,
-    'views_data_alter' => TRUE,
-  ),
-);
+if (module_exists('comment')) {
+  $plugin = array(
+    'handler' => 'PanelizerEntityComment',
+    'entity path' => 'comment/%',
+    'uses page manager' => FALSE,
+    'hooks' => array(
+      'menu' => TRUE,
+      'admin_paths' => TRUE,
+      'permission' => TRUE,
+      'panelizer_defaults' => TRUE,
+      'default_page_manager_handlers' => TRUE,
+      'form_alter' => TRUE,
+      'views_data_alter' => TRUE,
+    ),
+  );
+}