1 files changed, 1 insertions, 0 deletions
diff --git a/src/lib/image.h b/src/lib/image.h
index 458899f8b..602930029 100644
--- a/src/lib/image.h
+++ b/src/lib/image.h
@@ -108,6 +108,7 @@ public:
 private:
 	friend struct pixel_formats_test;
 	friend struct make_part_black_test;
+	friend void image_benchmark();
 
 	void allocate();
 	void swap(Image &);