diff --git a/src/Form/PanelsContentForm.php b/src/Form/PanelsContentForm.php
index fbe2c8b..8bec3ec 100644
--- a/src/Form/PanelsContentForm.php
+++ b/src/Form/PanelsContentForm.php
@@ -202,6 +202,7 @@ class PanelsContentForm extends FormBase {
             '#default_value' => isset($configuration['weight']) ? $configuration['weight'] : 0,
             '#title' => $this->t('Weight for @block block', ['@block' => $block->label()]),
             '#title_display' => 'invisible',
+            '#delta' => 101,
             '#attributes' => [
               'class' => ['block-weight', 'block-weight-' . $region],
             ],