diff --git a/h5p.classes.php b/h5p.classes.php
index a7fe2e0..9bca4ec 100644
--- a/h5p.classes.php
+++ b/h5p.classes.php
@@ -4204,7 +4204,7 @@ class H5PContentValidator {
                   ),
                   (object) array(
                     'value' => 'CC0 1.0',
-                    'label' => $this->h5pF->t('Public Domain Dedication (CC 0)')
+                    'label' => $this->h5pF->t('Public Domain Dedication (CC0)')
                   ),
                   (object) array(
                     'value' => 'CC PDM',