diff --git a/docs/rough_edges.md b/docs/rough_edges.md
index e7f0a17..41888f8 100644
--- a/docs/rough_edges.md
+++ b/docs/rough_edges.md
@@ -23,3 +23,6 @@ v2.
     other notification param types.
   - Similarly, `ProgressNotificationParams` should probably have been
     `ProgressParams`.
+
+- `AudioContent.MarshalJSON` should have had a pointer receiver, to be
+  consistent with other content types.
diff --git a/internal/docs/rough_edges.src.md b/internal/docs/rough_edges.src.md
index b5dbadc..fb52391 100644
--- a/internal/docs/rough_edges.src.md
+++ b/internal/docs/rough_edges.src.md
@@ -22,3 +22,6 @@ v2.
     other notification param types.
   - Similarly, `ProgressNotificationParams` should probably have been
     `ProgressParams`.
+
+- `AudioContent.MarshalJSON` should have had a pointer receiver, to be
+  consistent with other content types.