diff --git a/journal/todo.md b/journal/todo.md
index 78ea7d72e9c8a4c9e13cb14d42361f6ad8f403dd..c01c4bb6bc1412e900ea1150c27da041530c9a49 100644
--- a/journal/todo.md
+++ b/journal/todo.md
@@ -87,7 +87,7 @@
 ### Implementation
 * Implement the mentioned constraints from _Imposing Connectivity Constraints in Forest Planning Models_ (Thursday) (✔)
     - From now on only separators between the root node and other components are added to the model. This improves the runtime. ✔ 
-    - 
+    - The ring inequalites haven't been implemented yet. ❌ 
 * May implement that cuts are added even for fractional solutions to strengthen the LP bound. (thursday)
 
 ### runtime