diff --git a/src/amulet_nbt/pybind/tag/py_array_tag.cpp b/src/amulet_nbt/pybind/tag/py_array_tag.cpp
index 92ce4b8b..7edd0cb7 100644
--- a/src/amulet_nbt/pybind/tag/py_array_tag.cpp
+++ b/src/amulet_nbt/pybind/tag/py_array_tag.cpp
@@ -6,7 +6,6 @@
 #include <variant>
 #include <cstdint>
 #include <fstream>
-#include <optional>
 
 #include <pybind11/pybind11.h>
 #include <pybind11/stl.h>