diff --git a/scripts/pi-hole/php/header.php b/scripts/pi-hole/php/header.php
index eb1ed3919..175fd41f3 100644
--- a/scripts/pi-hole/php/header.php
+++ b/scripts/pi-hole/php/header.php
@@ -351,7 +351,7 @@ function pidofFTL()
                     ?>
                     <br/>
                     <?php
-                    echo '<span title="Detected $nproc cores"><i class="fa fa-w fa-circle ';
+                    echo '<span title="Detected '.$nproc.' cores"><i class="fa fa-w fa-circle ';
                     if ($loaddata[0] > $nproc) {
                         echo "text-red";
                     } else {