diff --git a/src/gamelog.cpp b/src/gamelog.cpp
--- a/src/gamelog.cpp
+++ b/src/gamelog.cpp
@@ -814,7 +814,7 @@ void GamelogInfo(LoggedAction *gamelog_a
 
 				case GLCT_REVISION:
 					*last_ottd_rev = lc->revision.newgrf;
-					*ever_modified = max(*ever_modified, lc->revision.modified);
+					*ever_modified = std::max(*ever_modified, lc->revision.modified);
 					break;
 
 				case GLCT_GRFREM: