1 files changed, 2 insertions, 0 deletions
diff --git a/src/resources/image.h b/src/resources/image.h
index 4bee1f0ed..c7d2657bd 100644
--- a/src/resources/image.h
+++ b/src/resources/image.h
@@ -56,6 +56,8 @@ class Image : public Resource
     friend class CompoundSprite;
     friend class Graphics;
     friend class ImageHelper;
+    friend class OpenGLImageHelper;
+    friend class SDLImageHelper;
 #ifdef USE_OPENGL
     friend class OpenGLGraphics;
     friend class OpenGL1Graphics;