diff --git a/includes/elements/section.php b/includes/elements/section.php
index 70dce9c97de4..7985b2d3d3b8 100644
--- a/includes/elements/section.php
+++ b/includes/elements/section.php
@@ -715,6 +715,12 @@ protected function _register_controls() {
 					'default' => [
 						'unit' => '%',
 					],
+					'tablet_default' => [
+						'unit' => '%',
+					],
+					'mobile_default' => [
+						'unit' => '%',
+					],
 					'range' => [
 						'%' => [
 							'min' => 100,