X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fbook.cpp;h=ad0d406d343d6b3889132a28c728727394ed5924;hb=0363b5435847e66678cd3fa0d8a94e30b9a91663;hp=dbd037885711c191b23d53622a6b6aa8db75dba9;hpb=94bb1964f6b5b4b9abca0bde03367d071922f449;p=stockfish

diff --git a/src/book.cpp b/src/book.cpp
index dbd03788..ad0d406d 100644
--- a/src/book.cpp
+++ b/src/book.cpp
@@ -366,7 +366,7 @@ void Book::open(const string& fName) {
 
   // Get the book size in number of entries
   seekg(0, ios::end);
-  bookSize = tellg() / EntrySize;
+  bookSize = long(tellg()) / EntrySize;
   seekg(0, ios::beg);
 
   if (!good())