diff --git a/wp-admin/custom-header.php b/wp-admin/custom-header.php
index 0f1856d6b5..7c739b0ff6 100644
--- a/wp-admin/custom-header.php
+++ b/wp-admin/custom-header.php
@@ -655,6 +655,7 @@ wp_nonce_field( 'custom-header-options', '_wpnonce-custom-header-options' ); ?>
 		if ( $width == HEADER_IMAGE_WIDTH && $height == HEADER_IMAGE_HEIGHT ) {
 			// Add the meta-data
 			wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
+			update_post_meta( $id, '_wp_attachment_is_custom_header', get_option('stylesheet' ) );
 
 			set_theme_mod('header_image', esc_url($url));
 			do_action('wp_create_file_in_uploads', $file, $id); // For replication