diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
index 1ce883352d1db9dc5730c76bc5615767960e3d71..59149f587c43b0ac8d07f46655d1e8a1004e9e0b 100755
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -2,7 +2,12 @@
 
 /**
  * @file
- * This script runs Drupal tests from command line.
+ * Script for running tests on DrupalCI.
+ *
+ * This script is intended for use only by drupal.org's testing. In general,
+ * tests should be run directly with phpunit.
+ *
+ * @internal
  */
 
 use Drupal\Component\FileSystem\FileSystem;