diff --git a/core/modules/taxonomy/src/TermStorageSchema.php b/core/modules/taxonomy/src/TermStorageSchema.php
index d8e8da3f15..ea1663285e 100644
--- a/core/modules/taxonomy/src/TermStorageSchema.php
+++ b/core/modules/taxonomy/src/TermStorageSchema.php
@@ -65,6 +65,7 @@ protected function getEntitySchema(ContentEntityTypeInterface $entity_type, $res
           'type' => 'varchar_ascii',
           'length' => 12,
           'not null' => TRUE,
+          'default' => '',
         ],
       ],
       'primary key' => ['nid', 'tid', 'langcode'],
diff --git a/core/modules/taxonomy/taxonomy.install b/core/modules/taxonomy/taxonomy.install
index 0e07b36a77..2cdf138df5 100644
--- a/core/modules/taxonomy/taxonomy.install
+++ b/core/modules/taxonomy/taxonomy.install
@@ -262,6 +262,7 @@ function taxonomy_update_8703() {
       'type' => 'varchar_ascii',
       'length' => 12,
       'not null' => TRUE,
+      'default' => '',
     ]);
 
     Database::getConnection()->schema()->dropPrimaryKey('taxonomy_index');