diff --git a/bottle.py b/bottle.py
index 97a56d3e..b5a76e8f 100755
--- a/bottle.py
+++ b/bottle.py
@@ -1277,8 +1277,8 @@ def json(self):
                 return None
             try:
                 return json_loads(b)
-            except (ValueError, TypeError):
-                raise HTTPError(400, 'Invalid JSON')
+            except (ValueError, TypeError) as err:
+                raise HTTPError(400, 'Invalid JSON', exception=err)
         return None
 
     def _iter_body(self, read, bufsize):
diff --git a/docs/changelog.rst b/docs/changelog.rst
index df972d66..0688b1c4 100755
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -11,6 +11,8 @@ Release 0.14 (in development)
 .. rubric:: Removed APIs (deprecated since 0.13)
 
 * Removed the ``RouteReset`` exception and associated logic.
+* ``bottle.HTTPError``\s raised on Invalid JSON now include the underlying exception
+  in their ``exception`` field.
 
 Release 0.13
 ==============