diff --git a/scripts/pi-hole/php/savesettings.php b/scripts/pi-hole/php/savesettings.php
index c4ba3c179..8b528d24e 100644
--- a/scripts/pi-hole/php/savesettings.php
+++ b/scripts/pi-hole/php/savesettings.php
@@ -597,9 +597,9 @@ function formatSizeUnits($bytes)
     } elseif ($bytes >= 1024) {
         $bytes = number_format($bytes / 1024, 2).' kB';
     } elseif ($bytes > 1) {
-        $bytes = $bytes.' bytes';
+        $bytes .= ' bytes';
     } elseif ($bytes == 1) {
-        $bytes = $bytes.' byte';
+        $bytes .= ' byte';
     } else {
         $bytes = '0 bytes';
     }