diff --git a/src/octoprint/server/__init__.py b/src/octoprint/server/__init__.py
index 0f430acf..7b259c8d 100644
--- a/src/octoprint/server/__init__.py
+++ b/src/octoprint/server/__init__.py
@@ -222,7 +222,7 @@ def index():
 	templates["sidebar"]["entries"]= dict(
 		connection=(gettext("Connection"), dict(template="sidebar/connection.jinja2", _div="connection", icon="signal", styles_wrapper=["display: none"], data_bind="visible: loginState.isAdmin")),
 		state=(gettext("State"), dict(template="sidebar/state.jinja2", _div="state", icon="info-sign")),
-		files=(gettext("Files"), dict(template="sidebar/files.jinja2", _div="files", icon="list", classes_content=["overflow_visible"], header_addon="sidebar/files_header.jinja2"))
+		files=(gettext("Files"), dict(template="sidebar/files.jinja2", _div="files", icon="list", classes_content=["overflow_visible"], template_header="sidebar/files_header.jinja2"))
 	)
 
 	# tabs
diff --git a/src/octoprint/templates/index.jinja2 b/src/octoprint/templates/index.jinja2
index d7aa1aa6..14ea7776 100644
--- a/src/octoprint/templates/index.jinja2
+++ b/src/octoprint/templates/index.jinja2
@@ -52,8 +52,8 @@
                                 <a class="accordion-toggle" data-toggle="collapse" data-target="#{{ data._div }}">
                                     {% if "icon" in data %}<i class="icon-{{ data.icon }}"></i> {% endif %}{{ entry }}
                                 </a>
-                                {% if "header_addon" in data %}
-                                    {% include data.header_addon ignore missing %}
+                                {% if "template_header" in data %}
+                                    {% include data.template_header ignore missing %}
                                 {% endif %}
                             </div>
                             <div id="{{ data._div }}"