diff --git a/c/todo.txt b/c/todo.txt
index 34badd9c7..35de8c084 100644
--- a/c/todo.txt
+++ b/c/todo.txt
@@ -10,6 +10,10 @@ x=0,y=3.000000
 $ echo 'x=0' | mlr put '$y=-(2*$x)+3'
 x=0,y=-3.000000
 
+----------------------------------------------------------------
+!! BUGFIX !!
+
+mlr put '$x/$y*$z' not right
 
 ================================================================
 NEATEN