diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 54e041d78..a6ffc1f47 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -109,6 +109,7 @@ error = Error
 error404 = The page you are trying to reach either <strong>does not exist</strong> or <strong>you are not authorized</strong> to view it.
 
 never = Never
+unknown = Unknown
 
 rss_feed = RSS Feed
 
diff --git a/templates/shared/actions/runner_list.tmpl b/templates/shared/actions/runner_list.tmpl
index e738a581c..f8b056ae7 100644
--- a/templates/shared/actions/runner_list.tmpl
+++ b/templates/shared/actions/runner_list.tmpl
@@ -64,7 +64,7 @@
 						</td>
 						<td>{{.ID}}</td>
 						<td><p data-tooltip-content="{{.Description}}">{{.Name}}</p></td>
-						<td>{{.Version}}</td>
+						<td>{{if .Version}}{{.Version}}{{else}}{{$.locale.Tr "unknown"}}{{end}}</td>
 						<td>{{.OwnType}}</td>
 						<td class="runner-tags">
 							{{range .AllLabels}}<span class="ui label">{{.}}</span>{{end}}