diff --git a/core/tests/Drupal/Tests/WebAssert.php b/core/tests/Drupal/Tests/WebAssert.php
index a6cb5b5e0ad399b0ba5c14b87178a5d2a55ee3f1..55ba465ddad7121aa3c4f023a846eb9859fb8e87 100644
--- a/core/tests/Drupal/Tests/WebAssert.php
+++ b/core/tests/Drupal/Tests/WebAssert.php
@@ -247,7 +247,7 @@ public function linkExists($label, $index = 0, $message = '') {
    *   Thrown when element doesn't exist, or the link label is a different one.
    */
   public function linkNotExists($label, $message = '') {
-    $message = ($message ? $message : strtr('Link with label %label found.', ['%label' => $label]));
+    $message = ($message ? $message : strtr('Link with label %label not found.', ['%label' => $label]));
     $links = $this->session->getPage()->findAll('named', ['link', $label]);
     $this->assert(empty($links), $message);
   }
@@ -291,7 +291,7 @@ public function linkByHrefExists($href, $index = 0, $message = '') {
    */
   public function linkByHrefNotExists($href, $message = '') {
     $xpath = $this->buildXPathQuery('//a[contains(@href, :href)]', [':href' => $href]);
-    $message = ($message ? $message : strtr('Link containing href %href found.', ['%href' => $href]));
+    $message = ($message ? $message : strtr('No link containing href %href found.', ['%href' => $href]));
     $links = $this->session->getPage()->findAll('xpath', $xpath);
     $this->assert(empty($links), $message);
   }