diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4da8c7a3a..000b72fa2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
         - Update target platforms to match Joomla 4.3 and up (#3170)
         - Login forms css styling bugfixes (#3185)
         - Register forms css styling bugfixes (#3185)
+        - Fix for Joomla 5.x debug css (#3190)
 
 # 5.5.16
 ## 03/31/2023
diff --git a/engines/joomla/nucleus/twig/partials/page_head.html.twig b/engines/joomla/nucleus/twig/partials/page_head.html.twig
index d7242e045..16a08adf3 100644
--- a/engines/joomla/nucleus/twig/partials/page_head.html.twig
+++ b/engines/joomla/nucleus/twig/partials/page_head.html.twig
@@ -34,7 +34,10 @@
     {% endif %}
 
     {% if gantry.theme.joomla %}
-        {% if gantry.platform.checkVersion(4) %}
+        {% if gantry.platform.checkVersion(5) %}
+            {# Joomla 5.x #}
+            <link rel="stylesheet" href="{{ url('media/plg_system_debug/css/debug.css') }}" type="text/css"/>
+        {% elseif gantry.platform.checkVersion(4) %}
             {# Joomla 4.x #}
             <link rel="stylesheet" href="{{ url('media/system/css/debug.css') }}" type="text/css"/>
         {% elseif gantry.platform.checkVersion(3) %}