diff --git a/core/modules/system/templates/page.html.twig b/core/modules/system/templates/page.html.twig
index 1f6f916..284adcb 100644
--- a/core/modules/system/templates/page.html.twig
+++ b/core/modules/system/templates/page.html.twig
@@ -76,7 +76,7 @@
       <div class="name-and-slogan">
 
         {# Use h1 when the content title is empty #}
-        {% if title %}
+        {% if title is defined %}
           <strong class="site-name">
             <a href="{{ front_page }}" title="{{ 'Home'|t }}" rel="home">{{ site_name }}</a>
           </strong>
@@ -115,7 +115,7 @@
       {{ page.highlighted }}
 
       {{ title_prefix }}
-      {% if title %}
+      {% if title is defined %}
         <h1>{{ title }}</h1>
       {% endif %}
       {{ title_suffix }}
diff --git a/core/themes/bartik/templates/page.html.twig b/core/themes/bartik/templates/page.html.twig
index b075295..996a6c6 100644
--- a/core/themes/bartik/templates/page.html.twig
+++ b/core/themes/bartik/templates/page.html.twig
@@ -95,7 +95,7 @@
     {% if site_name or site_slogan %}
       <div id="name-and-slogan"{% if hide_site_name and hide_site_slogan %} class="visually-hidden"{% endif %}>
         {% if site_name %}
-          {% if title %}
+          {% if title is defined %}
             <div id="site-name"{% if hide_site_name %} class="visually-hidden"{% endif %}>
               <strong>
                 <a href="{{ front_page }}" title="{{ 'Home'|t }}" rel="home"><span>{{ site_name }}</span></a>
@@ -145,7 +145,7 @@
       {% if page.highlighted %}<div id="highlighted">{{ page.highlighted }}</div>{% endif %}
       <a id="main-content"></a>
       {{ title_prefix }}
-        {% if title %}
+        {% if title is defined %}
           <h1 class="title" id="page-title">
             {{ title }}
           </h1>
diff --git a/core/themes/seven/templates/page.html.twig b/core/themes/seven/templates/page.html.twig
index 18b0bc1..196581f 100644
--- a/core/themes/seven/templates/page.html.twig
+++ b/core/themes/seven/templates/page.html.twig
@@ -66,7 +66,7 @@
   <header id="branding" class="clearfix">
     <div class="branding__inner">
       {{ title_prefix }}
-      {% if title %}
+      {% if title is defined %}
         <h1 class="page-title">{{ title }}</h1>
       {% endif %}
       {{ title_suffix }}