diff --git a/0.13-Known-Issues.md b/0.13-Known-Issues.md
index 7e30162..670aa5c 100644
--- a/0.13-Known-Issues.md
+++ b/0.13-Known-Issues.md
@@ -5,6 +5,7 @@ The intention is to make 0.13 as source compatible as possible with 0.12.  This
 ## Will fix
 
 * Input tasks are a work in progress.
+* A root project in .sbt leads to an infinite loop.  See also https://github.com/sbt/sbt/issues/554#issuecomment-12120799.
 
 ## Deferred fix (post-0.13.0)