diff --git a/src/map.cpp b/src/map.cpp
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -47,7 +47,7 @@ void AllocateMap(uint size_x, uint size_
 		error("Invalid map size");
 	}
 
-	DEBUG(map, 1, "Allocating map of size %dx%d", size_x, size_y);
+	Debug(map, 1, "Allocating map of size {}x{}", size_x, size_y);
 
 	_map_log_x = FindFirstBit(size_x);
 	_map_log_y = FindFirstBit(size_y);