diff --git a/share/jupyter/voila/templates/classic/index.html.j2 b/share/jupyter/voila/templates/classic/index.html.j2
index 7d304ac84..3377c6be9 100644
--- a/share/jupyter/voila/templates/classic/index.html.j2
+++ b/share/jupyter/voila/templates/classic/index.html.j2
@@ -58,7 +58,7 @@
{%- endblock html_head_js_mathjax -%}
{% block body_header %}
-
+
{{ spinner.html() }}
{{ voila_setup_helper_functions() }}
diff --git a/share/jupyter/voila/templates/lab/index.html.j2 b/share/jupyter/voila/templates/lab/index.html.j2
index 41e7886c0..1e3df3083 100644
--- a/share/jupyter/voila/templates/lab/index.html.j2
+++ b/share/jupyter/voila/templates/lab/index.html.j2
@@ -59,11 +59,11 @@
{%- block body_header -%}
{% if resources.theme == 'dark' or resources.theme == 'JupyterLab Dark' %}
-
+
{% elif resources.theme == 'light' or resources.theme == 'JupyterLab Light' %}
-
+
{% else %}
-
+
{% endif %}
{{ spinner.html() }}
{{ voila_setup_helper_functions() }}
diff --git a/share/jupyter/voila/templates/reveal/index.html.j2 b/share/jupyter/voila/templates/reveal/index.html.j2
index 8b24d65fb..3207f515d 100644
--- a/share/jupyter/voila/templates/reveal/index.html.j2
+++ b/share/jupyter/voila/templates/reveal/index.html.j2
@@ -64,9 +64,9 @@
{% block body_header %}
{% if resources.theme == 'dark' %}
-
+
{% else %}
-
+
{% endif %}
{{ spinner.html() }}
{{ voila_setup_helper_functions() }}