diff --git a/sass/_index.scss b/sass/_index.scss
index bdd87ca71..b9a533a1b 100644
--- a/sass/_index.scss
+++ b/sass/_index.scss
@@ -412,6 +412,10 @@
         }
 
         .call-to-action {
+            display: flex;
+            align-items: center;
+            gap: .5em;
+
             background-color: #fff;
             color: #000;
             font-size: 1.125rem;
@@ -419,6 +423,10 @@
             border-radius: 1000px;
             padding: .4em 2em;
             margin: 0 auto;
+
+            img {
+                max-height: 1.5em;
+            }
         }
     }
 
diff --git a/static/assets/frontpage/github-mark-white.svg b/static/assets/frontpage/github-mark-white.svg
new file mode 100644
index 000000000..c679c236f
--- /dev/null
+++ b/static/assets/frontpage/github-mark-white.svg
@@ -0,0 +1 @@
+<svg width="98" height="96" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M48.854 0C21.839 0 0 22 0 49.217c0 21.756 13.993 40.172 33.405 46.69 2.427.49 3.316-1.059 3.316-2.362 0-1.141-.08-5.052-.08-9.127-13.59 2.934-16.42-5.867-16.42-5.867-2.184-5.704-5.42-7.17-5.42-7.17-4.448-3.015.324-3.015.324-3.015 4.934.326 7.523 5.052 7.523 5.052 4.367 7.496 11.404 5.378 14.235 4.074.404-3.178 1.699-5.378 3.074-6.6-10.839-1.141-22.243-5.378-22.243-24.283 0-5.378 1.94-9.778 5.014-13.2-.485-1.222-2.184-6.275.486-13.038 0 0 4.125-1.304 13.426 5.052a46.97 46.97 0 0 1 12.214-1.63c4.125 0 8.33.571 12.213 1.63 9.302-6.356 13.427-5.052 13.427-5.052 2.67 6.763.97 11.816.485 13.038 3.155 3.422 5.015 7.822 5.015 13.2 0 18.905-11.404 23.06-22.324 24.283 1.78 1.548 3.316 4.481 3.316 9.126 0 6.6-.08 11.897-.08 13.526 0 1.304.89 2.853 3.316 2.364 19.412-6.52 33.405-24.935 33.405-46.691C97.707 22 75.788 0 48.854 0z" fill="#fff"/></svg>
diff --git a/static/assets/frontpage/github-mark.svg b/static/assets/frontpage/github-mark.svg
new file mode 100644
index 000000000..98d74c33f
--- /dev/null
+++ b/static/assets/frontpage/github-mark.svg
@@ -0,0 +1 @@
+<svg width="98" height="96" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M48.854 0C21.839 0 0 22 0 49.217c0 21.756 13.993 40.172 33.405 46.69 2.427.49 3.316-1.059 3.316-2.362 0-1.141-.08-5.052-.08-9.127-13.59 2.934-16.42-5.867-16.42-5.867-2.184-5.704-5.42-7.17-5.42-7.17-4.448-3.015.324-3.015.324-3.015 4.934.326 7.523 5.052 7.523 5.052 4.367 7.496 11.404 5.378 14.235 4.074.404-3.178 1.699-5.378 3.074-6.6-10.839-1.141-22.243-5.378-22.243-24.283 0-5.378 1.94-9.778 5.014-13.2-.485-1.222-2.184-6.275.486-13.038 0 0 4.125-1.304 13.426 5.052a46.97 46.97 0 0 1 12.214-1.63c4.125 0 8.33.571 12.213 1.63 9.302-6.356 13.427-5.052 13.427-5.052 2.67 6.763.97 11.816.485 13.038 3.155 3.422 5.015 7.822 5.015 13.2 0 18.905-11.404 23.06-22.324 24.283 1.78 1.548 3.316 4.481 3.316 9.126 0 6.6-.08 11.897-.08 13.526 0 1.304.89 2.853 3.316 2.364 19.412-6.52 33.405-24.935 33.405-46.691C97.707 22 75.788 0 48.854 0z" fill="#24292f"/></svg>
diff --git a/templates/index.html b/templates/index.html
index 7c436b0b7..032b60fb2 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -55,6 +55,8 @@
             services. Find out more in our developer documentation.
         </p>
         <a href="/docs/technical" class="call-to-action">Browse documentation </a>
+        <a href="https://github.com/matrix-org" class="call-to-action"><img src="/assets/frontpage/github-mark.svg"
+                alt="" /> We're open source</a>
     </div>
     <div id="sponsors" class="section">
         <h2>Thank you to our incredible sponsors</h2>