diff --git a/inc/setup.php b/inc/setup.php
index f58f250e2..420e39fa2 100644
--- a/inc/setup.php
+++ b/inc/setup.php
@@ -70,7 +70,7 @@ function understrap_setup() {
 		/*
 		 * Adding Thumbnail basic support
 		 */
-		add_theme_support( 'post-thumbnails', true );
+		add_theme_support( 'post-thumbnails', array() );
 
 		/*
 		 * Adding support for Widget edit icons in customizer