diff --git a/doc/TODO.020 b/doc/TODO.020
index 77db404f1..6ccc3683b 100644
--- a/doc/TODO.020
+++ b/doc/TODO.020
@@ -12,7 +12,7 @@ Backport for 0.2.0 once better tested:
   - r16621: Make some DNS code more robust (partial; see also libevent
             approach). (Also maybe r16674)
   - r17091: distinguish "no routers support pending circuits" from
-            "no circuits are pending."
+            "no circuits are pending." See also r17181 and r17184.
   - r17137: send END cell in response to connect to nonexistent hidserv port.
   - r17138: reject *:* servers should never do DNS lookups.
   - r17139: Fix another case of overriding .exit choices.