X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fbook.cpp;h=7dac7e7233ac3d2f052011470ed163ea7f679881;hb=c2c185423b13b0227c86009c6006e48e8d258896;hp=fcaccf6f7560fe92c24cccc22428166f77ca5e03;hpb=25b4d0c127af9fe564f7a797460bed4c2837bcc2;p=stockfish

diff --git a/src/book.cpp b/src/book.cpp
index fcaccf6f..7dac7e72 100644
--- a/src/book.cpp
+++ b/src/book.cpp
@@ -335,7 +335,7 @@ namespace {
         result ^= ZobCastle[3];
 
     if (pos.ep_square() != SQ_NONE)
-        result ^= ZobEnPassant[square_file(pos.ep_square())];
+        result ^= ZobEnPassant[file_of(pos.ep_square())];
 
     if (pos.side_to_move() == WHITE)
         result ^= ZobTurn[0];