1 files changed, 1 insertions, 1 deletions
diff --git a/src/anim.hpp b/src/anim.hpp
index 2927b7e3..c2a2d0d1 100644
--- a/src/anim.hpp
+++ b/src/anim.hpp
@@ -24,7 +24,7 @@ struct anim_group final
 {
     String name, mirror_from;
     std::vector<anim_frame> frames;
-    Vector2ui ground;
+    Vector2ui ground; // for use in anim-crop-tool only
     Vector3b offset;
 };