diff --git a/docs/redmine_issue.py b/docs/redmine_issue.py
new file mode 100644
index 0000000..35c3b12
--- /dev/null
+++ b/docs/redmine_issue.py
@@ -0,0 +1,70 @@
+# -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
+# Based on http://doughellmann.com/2010/05/09/defining-custom-roles-in-sphinx.html
+
+"""Integration of Sphinx with Redmine.
+"""
+
+from docutils import nodes, utils
+from docutils.parsers.rst.roles import set_classes
+
+def redmine_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
+    """Link to a Redmine issue.
+
+    Returns 2 part tuple containing list of nodes to insert into the
+    document and a list of system messages.  Both are allowed to be
+    empty.
+
+    :param name: The role name used in the document.
+    :param rawtext: The entire markup snippet, with role.
+    :param text: The text marked with the role.
+    :param lineno: The line number where rawtext appears in the input.
+    :param inliner: The inliner instance that called us.
+    :param options: Directive options for customization.
+    :param content: The directive content for customization.
+    """
+    try:
+        issue_num = int(text)
+        if issue_num <= 0:
+            raise ValueError
+    except ValueError:
+        msg = inliner.reporter.error(
+            'Redmine issue number must be a number greater than or equal to 1; '
+            '"%s" is invalid.' % text, line=lineno)
+        prb = inliner.problematic(rawtext, rawtext, msg)
+        return [prb], [msg]
+    app = inliner.document.settings.env.app
+    node = make_link_node(rawtext, app, 'issues', str(issue_num), options)
+    return [node], []
+
+def make_link_node(rawtext, app, type, slug, options):
+    """Create a link to a Redmine resource.
+
+    :param rawtext: Text being replaced with link node.
+    :param app: Sphinx application context
+    :param type: Link type (issue, changeset, etc.)
+    :param slug: ID of the thing to link to
+    :param options: Options dictionary passed to role func.
+    """
+    #
+    try:
+        base = app.config.redmine_project_url
+        if not base:
+            raise AttributeError
+    except AttributeError, err:
+        raise ValueError('redmine_project_url configuration value is not set (%s)' % str(err))
+    #
+    slash = '/' if base[-1] != '/' else ''
+    ref = base + slash + type + '/' + slug + '/'
+    set_classes(options)
+    node = nodes.reference(rawtext, 'Issue #' + utils.unescape(slug), refuri=ref,
+                           **options)
+    return node
+
+def setup(app):
+    """Install the plugin.
+
+    :param app: Sphinx application context.
+    """
+    app.add_role('issue', redmine_role)
+    app.add_config_value('redmine_project_url', None, 'env')
+    return