diff --git a/org_rw/org_rw.py b/org_rw/org_rw.py
index a8e6bdf..9cb19a7 100644
--- a/org_rw/org_rw.py
+++ b/org_rw/org_rw.py
@@ -203,6 +203,7 @@ class Headline:
         # Read planning line
         planning_line = self.get_element_in_line(start_line + 1)
 
+        # Ignore if not found or is a structural line
         if planning_line is None or isinstance(planning_line, tuple):
             return