diff --git a/libc/include/android/crash_detail.h b/libc/include/android/crash_detail.h
index 1fd082f..6744385 100644
--- a/libc/include/android/crash_detail.h
+++ b/libc/include/android/crash_detail.h
@@ -51,6 +51,11 @@
  * Tombstone proto definition:
  *   https://cs.android.com/android/platform/superproject/main/+/main:system/core/debuggerd/proto/tombstone.proto
  *
+ * An app can get hold of these for any `REASON_CRASH_NATIVE` instance of
+ * `android.app.ApplicationExitInfo`.
+ *
+ * https://developer.android.com/reference/android/app/ApplicationExitInfo#getTraceInputStream()
+
  * The lifetime of name and data has to be valid until the program crashes, or until
  * android_crash_detail_unregister is called.
  *