diff --git a/classes/helpers/FrmStylesHelper.php b/classes/helpers/FrmStylesHelper.php
index d0f62d15d8..01da9febdf 100644
--- a/classes/helpers/FrmStylesHelper.php
+++ b/classes/helpers/FrmStylesHelper.php
@@ -522,6 +522,8 @@ private static function get_style_keys_to_remove_from_output_vars() {
 			'use_base_font_size',
 			'field_shape_type',
 			'bg_image_id',
+			'single_style_custom_css',
+			'enable_style_custom_css',
 		);
 	}