diff --git a/src/lib/nbt.hpp b/src/lib/nbt.hpp
index bcd873e..5ab4ac8 100644
--- a/src/lib/nbt.hpp
+++ b/src/lib/nbt.hpp
@@ -112,9 +112,9 @@ namespace NBT {
             public:
                 End();
 
-                ErrorOrVoid serialize(std::vector<uint8_t>* rawData) override;
                 // This needs a separate serializer because
                 // END tags have a special header.
+                ErrorOrVoid serialize(std::vector<uint8_t>* rawData) override;
                 ErrorOrVoid serializeWithoutHeader(std::vector<uint8_t>* rawData) override;
         };