diff --git a/changes/bug25398 b/changes/bug25398
index 5f3fd7f5ea..3ea69c5b1e 100644
--- a/changes/bug25398
+++ b/changes/bug25398
@@ -1,2 +1,3 @@
-  o Minor bugfixes (portability):
-    - Remove uncompilable tor_mmap_file fallback. Fixes bug 25398.
+  o New system requirements:
+    - Tor no longer compiles on systems without mmap() or some local
+      equivalent. Closes ticket 25398.