diff --git a/sphinx_comments/__init__.py b/sphinx_comments/__init__.py
index 9faeff1..42a774b 100644
--- a/sphinx_comments/__init__.py
+++ b/sphinx_comments/__init__.py
@@ -77,8 +77,8 @@ def activate_comments(app, config):
             script.setAttribute("label", "{label}");
             script.setAttribute("crossorigin", "{crossorigin}");
 
-            sections = document.querySelectorAll("div.section");
-            if (sections !== null) {{
+            sections = document.querySelectorAll("div.section,section");
+            if (sections !== null && sections.length > 0) {{
                 section = sections[sections.length-1];
                 section.appendChild(script);
             }}
diff --git a/tests/test_comments/utterances.html b/tests/test_comments/utterances.html
index af5ae70..1ab7e05 100644
--- a/tests/test_comments/utterances.html
+++ b/tests/test_comments/utterances.html
@@ -23,8 +23,8 @@
     script.setAttribute("label", "💬 comment");
     script.setAttribute("crossorigin", "anonymous");
 
-    sections = document.querySelectorAll("div.section");
-    if (sections !== null) {
+    sections = document.querySelectorAll("div.section,section");
+    if (sections !== null && sections.length > 0) {
         section = sections[sections.length-1];
         section.appendChild(script);
     }