diff --git a/src/bitmap.h b/src/bitmap.h
index 70fe7ce..951dfea 100644
--- a/src/bitmap.h
+++ b/src/bitmap.h
@@ -100,6 +100,7 @@ public:
 
 	DECL_ATTR(Font, Font*)
 
+	/* <internal> */
 	void flush() const;
 	TexFBO &getGLTypes();
 	void bindTexWithMatrix();