diff --git a/src/saveload/afterload.cpp b/src/saveload/afterload.cpp
--- a/src/saveload/afterload.cpp
+++ b/src/saveload/afterload.cpp
@@ -599,8 +599,8 @@ bool AfterLoadGame()
 			int dx = TileX(t) - TileX(st->train_station.tile);
 			int dy = TileY(t) - TileY(st->train_station.tile);
 			assert(dx >= 0 && dy >= 0);
-			st->train_station.w = max<uint>(st->train_station.w, dx + 1);
-			st->train_station.h = max<uint>(st->train_station.h, dy + 1);
+			st->train_station.w = std::max<uint>(st->train_station.w, dx + 1);
+			st->train_station.h = std::max<uint>(st->train_station.h, dy + 1);
 		}
 	}
 
@@ -2457,7 +2457,7 @@ bool AfterLoadGame()
 						uint per_proc = _me[t].m7;
 						_me[t].m7 = GB(_me[t].m6, 2, 6) | (GB(_m[t].m3, 5, 1) << 6);
 						SB(_m[t].m3, 5, 1, 0);
-						SB(_me[t].m6, 2, 6, min(per_proc, 63));
+						SB(_me[t].m6, 2, 6, std::min(per_proc, 63U));
 					}
 					break;
 
@@ -2713,7 +2713,7 @@ bool AfterLoadGame()
 		_settings_game.pf.reverse_at_signals = IsSavegameVersionBefore(SLV_100) || (_settings_game.pf.wait_oneway_signal != 255 && _settings_game.pf.wait_twoway_signal != 255 && _settings_game.pf.wait_for_pbs_path != 255);
 
 		for (Train *t : Train::Iterate()) {
-			_settings_game.vehicle.max_train_length = max<uint8>(_settings_game.vehicle.max_train_length, CeilDiv(t->gcache.cached_total_length, TILE_SIZE));
+			_settings_game.vehicle.max_train_length = std::max<uint8>(_settings_game.vehicle.max_train_length, CeilDiv(t->gcache.cached_total_length, TILE_SIZE));
 		}
 	}