diff --git a/encthenet_plugins.py b/encthenet_plugins.py
new file mode 100644
index 0000000..86f9502
--- /dev/null
+++ b/encthenet_plugins.py
@@ -0,0 +1,62 @@
+from jinja2 import contextfilter, environmentfilter
+from jinja2.ext import Extension
+
+from io import StringIO
+from lxml import etree
+
+@contextfilter
+def rellinktoabs(context, value):
+	env = context.environment
+
+	# get the path for this context
+	rel_path = context['resource'].relative_path
+	content_url = env.globals['content_url'](context, rel_path)
+
+	html = etree.HTML(value)
+
+	# get all the fragment urls
+	r = html.xpath("//a[@href[starts-with(.,'#')]]")
+
+	for i in r:
+		# prefix them w/ the content_url
+		i.attrib['href'] = content_url + i.attrib['href']
+
+	return etree.tostring(html, encoding='unicode', method='html')
+
+# mostly copied from hyde.ext.templates.jinja.py Markdown
+# and using docs from:
+# https://jinja.palletsprojects.com/en/2.10.x/extensions/#example-extension
+# to get the filter installed
+
+class RelLinktoAbs(Extension):
+	"""
+	A wrapper around the rellinktoabs filter for syntactic sugar.
+	"""
+	tags = { 'rellinktoabs' }
+
+	def __init__(self, env):
+		super(RelLinktoAbs, self).__init__(env)
+
+		env.filters['rellinktoabs'] = rellinktoabs
+
+	def parse(self, parser):
+		"""
+		Parses the statements and defers to the callback
+		for rellinktoabs processing.
+		"""
+
+		lineno = next(parser.stream).lineno
+		body = parser.parse_statements(['name:endrellinktoabs'], drop_needle=True)
+
+		return nodes.CallBlock(
+		    self.call_method('_render_rellinktoabs'),
+		    [], [], body).set_lineno(lineno)
+
+	def _render_rellinktoabs(self, caller=None):
+		"""
+		Calls the rellinktoabs filter to transform the output.
+		"""
+		if not caller:
+			return ''
+		output = caller().strip()
+		return rellinktoabs(self.environment, output)
diff --git a/layout/blog.j2 b/layout/blog.j2
index 4c7cc83..b7abd26 100644
--- a/layout/blog.j2
+++ b/layout/blog.j2
@@ -23,7 +23,7 @@
 {% endif %}
 <div class="clear"/>
 <section>
-{% filter markdown|typogrify -%}
+{% filter markdown|typogrify|rellinktoabs -%}
 {% block post -%}{%- endblock %}
 {%- endfilter %}
 </section>
diff --git a/site.yaml b/site.yaml
index 377741f..fd13efd 100644
--- a/site.yaml
+++ b/site.yaml
@@ -13,6 +13,9 @@ context:
     data:
         tweet_via: encthenet
         title: encthenet ramblings
+jinja2:
+    extensions:
+        - encthenet_plugins.RelLinktoAbs
 markdown:
     extensions:
         - toc