diff --git a/includes/functions.php b/includes/functions.php
index c5ba1a47..e177aa52 100755
--- a/includes/functions.php
+++ b/includes/functions.php
@@ -271,15 +271,15 @@ function ConvertToSecurity($security)
 /**
  * Renders a simple PHP template
  */
-function renderTemplate($name, $data = [])
+function renderTemplate($name, $__template_data = [])
 {
     $file = realpath(dirname(__FILE__) . "/../templates/$name.php");
     if (!file_exists($file)) {
         return "template $name ($file) not found";
     }
 
-    if (is_array($data)) {
-        extract($data);
+    if (is_array($__template_data)) {
+        extract($__template_data);
     }
 
     ob_start();
diff --git a/templates/dhcp.php b/templates/dhcp.php
index 2b57586a..c93ab7ef 100755
--- a/templates/dhcp.php
+++ b/templates/dhcp.php
@@ -43,11 +43,11 @@
 
           <!-- Tab panes -->
           <div class="tab-content">
-            <?php echo renderTemplate("dhcp/general", $data) ?>
-            <?php echo renderTemplate("dhcp/advanced", $data) ?>
-            <?php echo renderTemplate("dhcp/clients", $data) ?>
-            <?php echo renderTemplate("dhcp/static_leases", $data) ?>
-            <?php echo renderTemplate("dhcp/logging", $data) ?>
+            <?php echo renderTemplate("dhcp/general", $__template_data) ?>
+            <?php echo renderTemplate("dhcp/advanced", $__template_data) ?>
+            <?php echo renderTemplate("dhcp/clients", $__template_data) ?>
+            <?php echo renderTemplate("dhcp/static_leases", $__template_data) ?>
+            <?php echo renderTemplate("dhcp/logging", $__template_data) ?>
           </div><!-- /.tab-content -->
 
           <?php echo $buttons ?>