diff --git a/_static/css/custom.css b/_static/css/custom.css
new file mode 100644
index 000000000..52c3f08c4
--- /dev/null
+++ b/_static/css/custom.css
@@ -0,0 +1,11 @@
+.wy-menu.wy-menu-vertical a.reference.external::after {
+  /* \00a0 = no break space */
+  content: "\00a0\f08e";
+  font-family: FontAwesome;
+  display: inline-block;
+  font-style: normal;
+  font-variant: normal;
+  text-rendering: auto;
+  -webkit-font-smoothing: antialiased;
+
+}
diff --git a/conf.py b/conf.py
index f557617b8..d4c1e1bf0 100644
--- a/conf.py
+++ b/conf.py
@@ -85,7 +85,8 @@
 
 html_baseurl = os.environ.get("READTHEDOCS_CANONICAL_URL", "/")
 
-html_static_path = ['attachment/doc']
+html_static_path = ['attachment/doc', '_static']
+html_css_files = ['css/custom.css']
 
 html_use_opensearch = "https://doc.qubes-os.org"