diff --git a/include/assimp/vector2.h b/include/assimp/vector2.h
index 564d1f8b5..3b85fc22b 100644
--- a/include/assimp/vector2.h
+++ b/include/assimp/vector2.h
@@ -99,7 +99,7 @@ public:
     operator aiVector2t<TOther> () const;
 
     TReal x, y;
-} PACK_STRUCT;
+};
 
 typedef aiVector2t<ai_real> aiVector2D;