diff --git a/docs/guide/signals.rst b/docs/guide/signals.rst
index 75f81e21..bc31fbd3 100644
--- a/docs/guide/signals.rst
+++ b/docs/guide/signals.rst
@@ -15,6 +15,7 @@ The following document signals exist in MongoEngine and are pretty self-explanat
 
   * `mongoengine.signals.pre_init`
   * `mongoengine.signals.post_init`
+  * `mongoengine.signals.pre_save_validation`
   * `mongoengine.signals.pre_save`
   * `mongoengine.signals.post_save`
   * `mongoengine.signals.pre_delete`