diff --git a/src/Illuminate/Filesystem/functions.php b/src/Illuminate/Filesystem/functions.php
index 47a26fd5eb38..af39716f6e4f 100644
--- a/src/Illuminate/Filesystem/functions.php
+++ b/src/Illuminate/Filesystem/functions.php
@@ -10,7 +10,7 @@
      * @param  string  ...$paths
      * @return string
      */
-    function join_paths($basePath, string ...$paths)
+    function join_paths($basePath, ...$paths)
     {
         foreach ($paths as $index => $path) {
             if (empty($path)) {