diff --git a/scripts/api-update.sh b/scripts/api-update.sh
index a3a564d8..cb832d0a 100755
--- a/scripts/api-update.sh
+++ b/scripts/api-update.sh
@@ -1,4 +1,12 @@
 #!/bin/bash
+# Cyclone Scheme
+# https://github.com/justinethier/cyclone
+#
+# Copyright (c) 2014-2016, Justin Ethier
+# All rights reserved.
+#
+# Copy API documentation to the Jekyll webpage (gh-pages)
+#
 
 TMP=/tmp/cyclone-docs
 
@@ -11,6 +19,7 @@ git checkout gh-pages
 cp -r $TMP/api/ docs/
 cp $TMP/API.md docs/
 
+# Clean up main API page
 echo "$(tail -n +2 docs/API.md)" > docs/API.md
 sed -i -- 's/.md//g' docs/API.md
 sed -i -- '1s;^;---\n\n;' docs/API.md
@@ -18,7 +27,10 @@ sed -i -- '1s;^;title: API\n;' docs/API.md
 sed -i -- '1s;^;layout: main\n;' docs/API.md
 sed -i -- '1s;^;---\n;' docs/API.md
 
-# find . | grep md
+# On-off replacements
+sed -i -- 's/#-heap/#heap/g' docs/api/srfi/18.md
+
+# Add Jekyll header and do global replacements
 cd docs/api
 for fn in `find . | grep md`; do
   echo "processing file: $fn"
diff --git a/scripts/generate-doc-index.sh b/scripts/generate-doc-index.sh
index f330be6a..a88368e9 100755
--- a/scripts/generate-doc-index.sh
+++ b/scripts/generate-doc-index.sh
@@ -1,5 +1,12 @@
 #!/bin/bash
+# Cyclone Scheme
+# https://github.com/justinethier/cyclone
+#
+# Copyright (c) 2014-2016, Justin Ethier
+# All rights reserved.
+#
 # Generate a sorted list of functions/variables from the API documentation.
+#
 API=api-index.txt
 TMP=/tmp/api-index.txt
 cyclone scripts/convert-doc-index.scm