diff --git a/README.md b/README.md
index 78b376a..83f1ede 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,7 @@ Anubis is a simple minimalist theme for [Hugo blog engine](https://gohugo.io/).
 - Social icons
 - Google Analytics
 - Disqus
+- ISSO
 - Utteranc.es
 - RSS feeds
 - Hiding posts from the RSS feed
@@ -87,6 +88,19 @@ params:
   utterancesTheme: "" # optional
   utterancesIssue: "" # optional
   utterancesLabel: "" # optional
+  # isso support
+  isso:
+    enabled: true # mandatory
+    data: "https://comments.example.com/" # mandatory
+    jsLocation: "https://comments.example.com/js/embed.min.js" # mandatory
+    css: true # optional
+    lang: "de" # optional
+    replyToSelf: true # mandatory
+    requireAuthor: true # mandatory
+    requireEmail: true # mandatory
+    id: "thread-id" # optional
+    avatar: true # optional
+    avatar-bg: "#f0f0f0" # optional
   webmentions:
     url: https://yourdomain.com/webemntions/receive
     login: hugo-theme-anubis
diff --git a/assets/css/main.css b/assets/css/main.css
index 23df334..2481ddd 100644
--- a/assets/css/main.css
+++ b/assets/css/main.css
@@ -601,3 +601,9 @@ ul.language-select > li, ul.footer-menu > li {
     {{ $custom := resources.Get . }}
     {{ $custom.Content }}
 {{ end }}
+
+{{ if site.Params.isso.enabled }}
+  #isso-thread .textarea {
+    color: #000;
+  }
+{{ end }}
diff --git a/layouts/_default/single.html b/layouts/_default/single.html
index 44cf703..72cc1de 100644
--- a/layouts/_default/single.html
+++ b/layouts/_default/single.html
@@ -33,4 +33,8 @@
         {{ partial "utterances.html" . }}
     {{ end }}
 
+    {{ if .Site.Params.isso.enabled }}
+        {{ partial "isso.html" . }}
+    {{ end }}
+
 {{ end }}
diff --git a/layouts/partials/isso.html b/layouts/partials/isso.html
new file mode 100644
index 0000000..ed62db6
--- /dev/null
+++ b/layouts/partials/isso.html
@@ -0,0 +1,23 @@
+{{ $lang := .Site.Params.isso.lang | default "en" }}
+{{ $css := .Site.Params.isso.css | default "true" }}
+{{ $id := .Site.Params.isso.id | default "true" }}
+{{ $avatar := .Site.Params.isso.avatar | default "true" }}
+{{ $avatarbg := .Site.Params.isso.avatarbg | default "#f0f0f0" }}
+<article class="post">
+<script
+    data-isso="{{ .Site.Params.isso.data }}"
+    data-isso-id="{{ $id }}"
+    data-isso-css="{{ $css }}"
+    data-isso-lang="{{ $lang }}"
+    data-isso-reply-to-self="{{ .Site.Params.isso.replyToSelf }}"
+    data-isso-require-author="{{ .Site.Params.isso.requireAuthor }}"
+    data-isso-require-email="{{ .Site.Params.isso.requireEmail }}"
+    data-isso-avatar="{{ $avatar }}"
+    data-isso-avatar-bg="{{ $avatarbg }}"
+    src="{{ .Site.Params.isso.jsLocation }}">
+</script>
+<noscript>Please enable JavaScript to view the comments powered by <a href="https://posativ.org/isso/">Isso</a>.</noscript>
+<div>
+  <section id="isso-thread"></section>
+</div>
+</article>