diff --git a/sc2/TODO b/sc2/TODO
index 810173bb7..484b88eb1 100644
--- a/sc2/TODO
+++ b/sc2/TODO
@@ -110,6 +110,8 @@ Implementation bugs (low priority):
   And is the speed correct?
 - Transitions aren't synced always; there should be a way to ensure everything
   so far queued is drawn before the transition starts
+- Lines and colouring of planet surface when scanning bugs
+  (is too choppy and fast)
 
 Stuff still to do (large):
 - add a Key Jamming program