diff --git a/app/server/static/components/label.vue b/app/server/static/components/label.vue
index fd36e8f5..e62d4d6d 100644
--- a/app/server/static/components/label.vue
+++ b/app/server/static/components/label.vue
@@ -16,7 +16,7 @@
                   backgroundColor: newLabel.background_color \
                 }") {{ newLabel.text }}
 
-                span.tag is-medium
+                span.tag.is-medium
                   kbd {{ shortcutKey(newLabel) | simpleShortcut }}
 
             div.column