diff --git a/app/views/projects/runners/_form.html.haml b/app/views/projects/runners/_form.html.haml
index ac8e15a48b23186d4be7f3f852ae3806d29a0fe9..de85615c672e2d97897bb2e6bca5868624c67819 100644
--- a/app/views/projects/runners/_form.html.haml
+++ b/app/views/projects/runners/_form.html.haml
@@ -39,6 +39,6 @@
       Tags
     .col-sm-10
       = f.text_field :tag_list, value: runner.tag_list.sort.join(', '), class: 'form-control'
-      .help-block You can setup jobs to only use Runners with specific tags
+      .help-block You can setup jobs to only use Runners with specific tags. Separate tags with commas.
   .form-actions
     = f.submit 'Save changes', class: 'btn btn-save'
diff --git a/changelogs/unreleased/37405-admin-page-runner-tag-help-update.yml b/changelogs/unreleased/37405-admin-page-runner-tag-help-update.yml
new file mode 100644
index 0000000000000000000000000000000000000000..bec7da26b1aa6fb2e0d769a84318082efd53ad82
--- /dev/null
+++ b/changelogs/unreleased/37405-admin-page-runner-tag-help-update.yml
@@ -0,0 +1,5 @@
+---
+title: 'Add help text to runner edit: tags should be separated by commas.'
+merge_request:
+author: Brendan O'Leary
+type: added