diff --git a/.github/workflows/add-notebook-examples-to-docs.yml b/.github/workflows/add-notebook-examples-to-docs.yml
index 78e76850..223d43d7 100644
--- a/.github/workflows/add-notebook-examples-to-docs.yml
+++ b/.github/workflows/add-notebook-examples-to-docs.yml
@@ -44,7 +44,7 @@ jobs:
               jupyter nbconvert --to markdown "$source_file" || { echo "Error: Failed to convert $source_file" >&2; continue; }
               markdown_file="${source_file%.ipynb}.md"
               echo "Removing existing content after {/* SOURCE_FILE: ... */}"
-              sed -i '/\{\/\*  SOURCE_FILE:/,$d' "$file"
+              sed -i '\#{/\*  SOURCE_FILE:#,$d' "$file"
               echo "Appending markdown to $file"
               echo -e "\n{/*  SOURCE_FILE: $source_file  */}\n" >> "$file"
               cat "$markdown_file" >> "$file" || { echo "Error: Failed to append markdown to $file" >&2; continue; }