diff --git a/administrator/templates/hathor/index.php b/administrator/templates/hathor/index.php
index d5a5cd95a1fd6..ae2688159bb7d 100644
--- a/administrator/templates/hathor/index.php
+++ b/administrator/templates/hathor/index.php
@@ -36,6 +36,14 @@
 
 $doc->addStyleSheetVersion('templates/' . $this->template . '/css/colour_' . $colour . '.css');
 
+// Load custom.css
+$file = 'templates/' . $this->template . '/css/custom.css';
+
+if (is_file($file))
+{
+	$doc->addStyleSheetVersion($file);
+}
+
 // Load specific language related CSS
 $file = 'language/' . $lang->getTag() . '/' . $lang->getTag() . '.css';
 
diff --git a/administrator/templates/isis/index.php b/administrator/templates/isis/index.php
index a054eff6f3e29..3af4276620124 100644
--- a/administrator/templates/isis/index.php
+++ b/administrator/templates/isis/index.php
@@ -24,6 +24,14 @@
 // Add Stylesheets
 $doc->addStyleSheetVersion('templates/' . $this->template . '/css/template' . ($this->direction == 'rtl' ? '-rtl' : '') . '.css');
 
+// Load custom.css
+$file = 'templates/' . $this->template . '/css/custom.css';
+
+if (is_file($file))
+{
+	$doc->addStyleSheetVersion($file);
+}
+
 // Load specific language related CSS
 $file = 'language/' . $lang->getTag() . '/' . $lang->getTag() . '.css';