diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
index 19766d2a19e178c0e81e1166352bfc6e041f8718..6b4c456fcfb83936f38fdbf8e34cc6139cd5d7f5 100755
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -335,6 +335,14 @@ function simpletest_script_help() {
               will be used. The default is that any unexpected silenced
               deprecation error will fail tests.
 
+  --ci-parallel-node-total
+
+              The total number of instances of this job running in parallel.
+
+  --ci-parallel-node-index
+
+              The index of the job in the job set.
+
   <test1>[,<test2>[,<test3> ...]]
 
               One or more tests to be run. By default, these are interpreted