diff --git a/src/core/arm/arm_interface.h b/src/core/arm/arm_interface.h
index c455e7208b..9624a2b5dc 100644
--- a/src/core/arm/arm_interface.h
+++ b/src/core/arm/arm_interface.h
@@ -4,9 +4,9 @@
 #pragma once
 
 #include <array>
+#include <optional>
 #include <span>
 #include <vector>
-#include <optional>
 
 #include <dynarmic/interface/halt_reason.h>