diff --git a/src/wp-includes/widgets/class-wp-widget-media-gallery.php b/src/wp-includes/widgets/class-wp-widget-media-gallery.php
index 40cc5c2ba4664..ecc446c2218b0 100644
--- a/src/wp-includes/widgets/class-wp-widget-media-gallery.php
+++ b/src/wp-includes/widgets/class-wp-widget-media-gallery.php
@@ -248,6 +248,8 @@ public function render_control_template_scripts() {
 	protected function has_content( $instance ) {
 		if ( ! empty( $instance['ids'] ) ) {
 			$attachments = wp_parse_id_list( $instance['ids'] );
+			// Prime attachment post caches.
+			_prime_post_caches( $attachments, false, false );
 			foreach ( $attachments as $attachment ) {
 				if ( 'attachment' !== get_post_type( $attachment ) ) {
 					return false;