Fix compilation on 64 bit.

1 files changed, 1 insertions, 1 deletions

diff --git a/crawl-ref/source/format.cc b/crawl-ref/source/format.cc
index 536bf2d791..c4a32949bc 100644
--- a/crawl-ref/source/format.cc
+++ b/crawl-ref/source/format.cc
@@ -52,7 +52,7 @@ void display_tagged_block(const std::string &s)
     int x = wherex();
     int y = wherey();
     const unsigned int max_y = cgetsize(GOTO_CRT).y;
-    const int size = std::min(lines.size(), max_y - y + 1);
+    const int size = std::min<unsigned int>(lines.size(), max_y - y + 1);
     for (int i = 0; i < size; ++i)
     {
         cgotoxy(x, y);