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-rw-r--r--src/World/World.hpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/World/World.hpp b/src/World/World.hpp
index 71156f4..ef8b7af 100644
--- a/src/World/World.hpp
+++ b/src/World/World.hpp
@@ -2,6 +2,7 @@
 
 #include <unordered_map>
 #include <unordered_set>
+#include <optional>
 #include "Generation/Generator.hpp"
 #include "ChunkIndex.hpp"
 #include "../GFX/Binder.hpp"