diff --git a/core/modules/block/block.admin.inc b/core/modules/block/block.admin.inc
index 848298f00d2..cc4bd716354 100644
--- a/core/modules/block/block.admin.inc
+++ b/core/modules/block/block.admin.inc
@@ -285,7 +285,8 @@ function block_admin_configure($form, &$form_state, $module, $delta) {
   $form['settings']['title'] = array(
     '#type' => 'textfield',
     '#title' => t('Block title'),
-    '#maxlength' => 64,
+    '#maxlength' => 255,
+    '#size' => 60,
     '#description' => $block->module == 'block' ? t('The title of the block as shown to the user.') : t('Override the default title for the block. Use <em>!placeholder</em> to display no title, or leave blank to use the default block title.', array('!placeholder' => '&lt;none&gt;')),
     '#default_value' => isset($block->title) ? $block->title : '',
     '#weight' => -19,
diff --git a/core/modules/block/block.install b/core/modules/block/block.install
index 4c5149b85fc..09ba522ca50 100644
--- a/core/modules/block/block.install
+++ b/core/modules/block/block.install
@@ -79,7 +79,7 @@ function block_schema() {
       ),
       'title' => array(
         'type' => 'varchar',
-        'length' => 64,
+        'length' => 255,
         'not null' => TRUE,
         'default' => '',
         'description' => 'Custom title for the block. (Empty string will use block default title, <none> will remove the title, text will cause block to use specified title.)',
@@ -311,6 +311,21 @@ function block_update_8002() {
     ->execute();
 }
 
+/**
+ * Increase {block}.title length to 255 characters.
+ */
+function block_update_8003() {
+  db_change_field('block', 'title', 'title', array(
+    'type' => 'varchar',
+    'length' => 255,
+    'not null' => TRUE,
+    'default' => '',
+    'description' => 'Custom title for the block. (Empty string will use block default title, <none> will remove the title, text will cause block to use specified title.)',
+    'translatable' => TRUE,
+    )
+  );
+}
+
 /**
  * @} End of "addtogroup updates-7.x-to-8.x".
  * The next series of updates should start at 9000.