diff --git a/core/modules/config/config.install b/core/modules/config/config.install
index c109c3f..c971ae6 100644
--- a/core/modules/config/config.install
+++ b/core/modules/config/config.install
@@ -21,7 +21,7 @@ function config_requirements($phase) {
   // Ensure the configuration sync directory is writable. This is only a warning
   // because only configuration import from a tarball requires the folder to be
   // web writable.
-  if (!is_writable($directory)) {
+  if ($phase !== 'install' && !is_writable($directory)) {
     $requirements['config directory ' . CONFIG_SYNC_DIRECTORY] = [
       'title' => t('Configuration directory: %type', ['%type' => CONFIG_SYNC_DIRECTORY]),
       'description' => t('The directory %directory is not writable.', ['%directory' => $directory]),