diff --git a/src/piece_picker.cpp b/src/piece_picker.cpp
index 07e0873ce..fd6b5032d 100755
--- a/src/piece_picker.cpp
+++ b/src/piece_picker.cpp
@@ -297,7 +297,9 @@ namespace libtorrent
 		// update the piece_map
 		piece_pos& p = m_piece_map[index];
 
-		assert(p.downloading != downloading || (int)p.peer_count != peer_count);
+		assert(p.downloading != downloading
+			|| p.filtered != filtered
+			|| (int)p.peer_count != peer_count);
 
 		std::vector<std::vector<int> >& dst_vec(pick_piece_info_vector(p.downloading, p.filtered));