1 files changed, 2 insertions, 0 deletions
diff --git a/bs4/element.py b/bs4/element.py
index c70ad5a..336768b 100644
--- a/bs4/element.py
+++ b/bs4/element.py
@@ -294,6 +294,8 @@ class PageElement(object):
     _lastRecursiveChild = _last_descendant
 
     def insert(self, position, new_child):
+        if new_child is None:
+            raise ValueError("Cannot insert None into a tag.")
         if new_child is self:
             raise ValueError("Cannot insert a tag into itself.")
         if (isinstance(new_child, basestring)