diff --git a/docs/manual.html b/docs/manual.html
index 1bb650f38..9e3e01981 100755
--- a/docs/manual.html
+++ b/docs/manual.html
@@ -477,6 +477,11 @@ public:
 
         torrent_info(const entry& torrent_file)
 
+        torrent_info(
+                int piece_size
+                , const char* name
+                , const char* comment = 0);
+
         typedef std::vector>file_entry>::const_iterator file_iterator;
         typedef std::vector<file_entry>::const_reverse_iterator reverse_file_iterator;
 
@@ -1115,6 +1120,7 @@ any events at all.</p>
 <p>When you get an alert, you can use <tt class="literal"><span class="pre">typeid()</span></tt> or <tt class="literal"><span class="pre">dynamic_cast&lt;&gt;</span></tt> to get more detailed
 information on exactly which type it is. i.e. what kind of error it is. You can also use a
 <a class="reference" href="#dispatcher">dispatcher</a> mechanism that's available in libtorrent.</p>
+<p>All alert types are defined in the <tt class="literal"><span class="pre">&lt;libtorrent/alert_types.hpp&gt;</span></tt> header file.</p>
 <p>The <tt class="literal"><span class="pre">alert</span></tt> class is the base class that specific messages are derived from. This
 is its synopsis:</p>
 <pre class="literal-block">
diff --git a/docs/manual.rst b/docs/manual.rst
index 055c2f700..9d113caf4 100755
--- a/docs/manual.rst
+++ b/docs/manual.rst
@@ -1161,6 +1161,8 @@ When you get an alert, you can use ``typeid()`` or ``dynamic_cast<>`` to get mor
 information on exactly which type it is. i.e. what kind of error it is. You can also use a
 dispatcher_ mechanism that's available in libtorrent.
 
+All alert types are defined in the ``<libtorrent/alert_types.hpp>`` header file.
+
 The ``alert`` class is the base class that specific messages are derived from. This
 is its synopsis::
 
diff --git a/include/libtorrent/alert_types.hpp b/include/libtorrent/alert_types.hpp
index 8b17328ba..e6f69f3e9 100755
--- a/include/libtorrent/alert_types.hpp
+++ b/include/libtorrent/alert_types.hpp
@@ -33,6 +33,8 @@ POSSIBILITY OF SUCH DAMAGE.
 #ifndef TORRENT_ALERT_TYPES_HPP_INCLUDED
 #define TORRENT_ALERT_TYPES_HPP_INCLUDED
 
+#include <string>
+
 #include "libtorrent/alert.hpp"
 #include "libtorrent/torrent_handle.hpp"