diff --git a/source/blender/draw/intern/draw_cache_extract.hh b/source/blender/draw/intern/draw_cache_extract.hh
index 94118be615c..c7127d169e1 100644
--- a/source/blender/draw/intern/draw_cache_extract.hh
+++ b/source/blender/draw/intern/draw_cache_extract.hh
@@ -196,8 +196,8 @@ struct MeshBatchList {
 };

 #define MBC_BATCH_LEN (sizeof(MeshBatchList) / sizeof(void *))
-#define MBC_VBO_LEN (sizeof((MeshBufferList{0}).vbo) / sizeof(void *))
-#define MBC_IBO_LEN (sizeof((MeshBufferList{0}).ibo) / sizeof(void *))
+#define MBC_VBO_LEN (sizeof(MeshBufferList::vbo) / sizeof(void *))
+#define MBC_IBO_LEN (sizeof(MeshBufferList::ibo) / sizeof(void *))

 #define MBC_BATCH_INDEX(batch) (offsetof(MeshBatchList, batch) / sizeof(void *))