diff --git a/src/hwrenderer/data/buffers.h b/src/hwrenderer/data/buffers.h
index d179d5447..9707a6eea 100644
--- a/src/hwrenderer/data/buffers.h
+++ b/src/hwrenderer/data/buffers.h
@@ -1,5 +1,8 @@
 #pragma once
 
+#include <stddef.h>
+#include <assert.h>
+
 // The low level code needs to know which attributes exist.
 // OpenGL needs to change the state of all of them per buffer binding.
 // VAOs are mostly useless for this because they lump buffer and binding state together which the model code does not want.
@@ -75,4 +78,4 @@ public:
 	virtual void BindRange(size_t start, size_t length) = 0;
 	virtual void BindBase() = 0;
 
-};
\ No newline at end of file
+};