diff --git a/cogl/cogl-buffer-private.h b/cogl/cogl-buffer-private.h
index c601f797a..ed324f946 100644
--- a/cogl/cogl-buffer-private.h
+++ b/cogl/cogl-buffer-private.h
@@ -36,8 +36,6 @@
 
 G_BEGIN_DECLS
 
-#define COGL_BUFFER(buffer)     ((CoglBuffer *)(buffer))
-
 typedef struct _CoglBufferVtable CoglBufferVtable;
 
 struct _CoglBufferVtable
diff --git a/cogl/cogl-buffer.h b/cogl/cogl-buffer.h
index f3b3dbce6..800702e89 100644
--- a/cogl/cogl-buffer.h
+++ b/cogl/cogl-buffer.h
@@ -74,6 +74,8 @@ G_BEGIN_DECLS
 #define cogl_buffer_unmap cogl_buffer_unmap_EXP
 #define cogl_buffer_set_data cogl_buffer_set_data_EXP
 
+#define COGL_BUFFER(buffer)     ((CoglBuffer *)(buffer))
+
 typedef struct _CoglBuffer CoglBuffer;
 
 /**