diff --git a/ChangeLog b/ChangeLog
index 7ec5f4712..2c26844fa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,11 @@
-	* fixed bug with file_progress() with files > 2 GB
-	* added --enable-examples option to configure script
+	* changed the address type to support IPv6
+	* fixed in piece picker which would assert when changing
+	  sequenced download threshold on torrents with already
+	  downloaded pieces.
+	* fixed bug with file_progress() with files > 2 GB.
+	* added --enable-examples option to configure script.
 	* fixed problem with the resource distribution algorithm
-	  (controlling e.g upload/download rates)
+	  (controlling e.g upload/download rates).
 	* fixed incorrect asserts in storage related to torrents with
 	  zero-sized files.
 	* added support for trackerless torrents (with kademlia DHT).
diff --git a/src/piece_picker.cpp b/src/piece_picker.cpp
index 6a3aa8423..731c2c70d 100755
--- a/src/piece_picker.cpp
+++ b/src/piece_picker.cpp
@@ -157,8 +157,9 @@ namespace libtorrent
 			if (i->priority(old_limit) != i->priority(m_sequenced_download_threshold))
 			{
 				piece_pos& p = *i;
-				int prev_priority = i->priority(old_limit);
-				move(p.downloading, p.filtered, prev_priority, i->index);
+				if (p.index == piece_pos::we_have_index) continue;
+				int prev_priority = p.priority(old_limit);
+				move(p.downloading, p.filtered, prev_priority, p.index);
 			}
 		}
 	}
@@ -378,6 +379,7 @@ namespace libtorrent
 		assert(!filtered);
 		assert(priority >= 0);
 		assert(elem_index >= 0);
+		assert(elem_index != piece_pos::we_have_index);
 		std::vector<std::vector<int> >& src_vec(pick_piece_info_vector(
 			downloading, filtered));