diff --git a/doc/book/reference-manual/known-issues.md b/doc/book/reference-manual/known-issues.md
index 6801189b..bd2c3319 100644
--- a/doc/book/reference-manual/known-issues.md
+++ b/doc/book/reference-manual/known-issues.md
@@ -28,7 +28,9 @@ fixed yet.
 
 ### Layout updates might require manual intervention
 
+### Tag assignement
 
+You need to repeat mutiple time -t to have multiple tags, pushing tags with commas will result in a single string.
 
 ## General footguns