diff --git a/org_rw/org_rw.py b/org_rw/org_rw.py
index 686525b..d7d6ad8 100644
--- a/org_rw/org_rw.py
+++ b/org_rw/org_rw.py
@@ -2338,7 +2338,7 @@ class OrgDoc:
             yield hl
 
     def get_code_snippets(self):
-        for headline in self.headlines:
+        for headline in self.getAllHeadlines():
             yield from headline.get_code_snippets()
 
     # Writing