diff --git a/wp-admin/includes/file.php b/wp-admin/includes/file.php
index 46e9ecc6bb..ddd2be849a 100644
--- a/wp-admin/includes/file.php
+++ b/wp-admin/includes/file.php
@@ -1198,6 +1198,8 @@ function download_url( $url, $timeout = 300, $signature_verification = false ) {
 		if ( $tmpfname_disposition && is_string( $tmpfname_disposition )
 			&& ( 0 === validate_file( $tmpfname_disposition ) )
 		) {
+			$tmpfname_disposition = dirname( $tmpfname ) . '/' . $tmpfname_disposition;
+
 			if ( rename( $tmpfname, $tmpfname_disposition ) ) {
 				$tmpfname = $tmpfname_disposition;
 			}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 085663aae6..e9a37d7dce 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.0-alpha-52733';
+$wp_version = '6.0-alpha-52734';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.