X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=src%2Fbook.cpp;h=2c11a3d507b066db136e23e916257368d6e51291;hb=12f4bbc8f2b6122d9dc0949f3483e7dd3f26a829;hp=9528e47c8c9e99c383e22838371723f9e1a09e6f;hpb=97a6e1559e78dd31a5ecec9f3b35181f82942823;p=stockfish

diff --git a/src/book.cpp b/src/book.cpp
index 9528e47c..2c11a3d5 100644
--- a/src/book.cpp
+++ b/src/book.cpp
@@ -30,6 +30,7 @@
 ////
 
 #include <cassert>
+#include <iostream>
 
 #include "book.h"
 #include "movegen.h"