diff --git a/includes/install.inc b/includes/install.inc
index 8234c37e605a26ee00520ff9e8b42a24d1302604..9860a20cc7792546538c66db5863ec607e5de1aa 100644
--- a/includes/install.inc
+++ b/includes/install.inc
@@ -590,6 +590,7 @@ function drupal_install_fix_file($file, $mask, $message = TRUE) {
 function install_goto($path) {
   global $base_url;
   header('Location: '. $base_url .'/'. $path);
+  header('Cache-Control: no-cache'); // Not a permanent redirect.
   exit();
 }