diff --git a/core/modules/taxonomy/src/TermInterface.php b/core/modules/taxonomy/src/TermInterface.php
index 9c0c47efb97c..3087a56ecbf9 100644
--- a/core/modules/taxonomy/src/TermInterface.php
+++ b/core/modules/taxonomy/src/TermInterface.php
@@ -85,7 +85,7 @@ interface TermInterface extends ContentEntityInterface, EntityChangedInterface {
   /**
    * Get the taxonomy vocabulary id this term belongs to.
    *
-   * @return int
+   * @return string
    *   The id of the vocabulary.
    *
    * @deprecated Scheduled for removal before Drupal 9.0.0. Use