diff --git a/guest_header.php b/guest_header.php
index fe649a0b..d6ddd4ed 100644
--- a/guest_header.php
+++ b/guest_header.php
@@ -6,9 +6,9 @@ require_once("functions.php");
 session_start();
 
 $ip = sanitizeInput(getIP());
-$ua = sanitizeInput($_SERVER['HTTP_USER_AGENT']);
-$os = sanitizeInput(getOS($ua));
-$browser = sanitizeInput(getWebBrowser($ua));
+$user_agent = sanitizeInput($_SERVER['HTTP_USER_AGENT']);
+$os = sanitizeInput(getOS($user_agent));
+$browser = sanitizeInput(getWebBrowser($user_agent));
 
 ?>
 
diff --git a/guest_view_item.php b/guest_view_item.php
index 66d4d9c2..b90f2395 100644
--- a/guest_view_item.php
+++ b/guest_view_item.php
@@ -152,7 +152,7 @@ if ($item_type == "Document") {
 
     // Logging
     $name = sanitizeInput($login_row['login_name']);
-    mysqli_query($mysqli, "INSERT INTO logs SET log_type = 'Sharing', log_action = 'View', log_description = 'Viewed shared $item_type $name via link', log_client_id = $client_id, log_ip = '$ip', log_user_agent = '$ua'");
+    mysqli_query($mysqli, "INSERT INTO logs SET log_type = 'Sharing', log_action = 'View', log_description = 'Viewed shared $item_type $name via link', log_client_id = $client_id, log_ip = '$ip', log_user_agent = '$user_agent'");
 
 }