diff --git a/src/apyanki/anki.py b/src/apyanki/anki.py
index 23f1241..f15c314 100644
--- a/src/apyanki/anki.py
+++ b/src/apyanki/anki.py
@@ -598,6 +598,8 @@ def _update_file_with_note_ids(
 
         # Extract each note's section and check if it needs to be updated
         updated_content: list[str] = []
+        # Keep content before first '# Note'
+        updated_content.append(content[0 : note_positions[0]])
         for i in range(len(note_positions) - 1):
             start = note_positions[i]
             end = note_positions[i + 1]