diff --git a/library/components/legends/ApproxPinNote.vue b/library/components/legends/ApproxPinNote.vue
index 7b77dc84e..adb0839a4 100644
--- a/library/components/legends/ApproxPinNote.vue
+++ b/library/components/legends/ApproxPinNote.vue
@@ -10,6 +10,7 @@
 <script setup>
 import { computed } from 'vue'
 import { useOptionalT } from '@map/composables/useOptionalT.js'
+import { formatList } from '@map/i18n/index.js'
 
 const props = defineProps({
   /** Names of the OTHER groups on this pin's coordinate; empty = not shared. */
@@ -27,7 +28,7 @@ const APPROX_FALLBACK = {
 // passed in, so a bare host renders the same English it rendered before.
 const t = useOptionalT('', { fallback: (key) => APPROX_FALLBACK[key] })
 const second = computed(() => props.shared.length
-  ? t('pins.sharedPoint', { names: props.shared.join(', '), n: props.shared.length + 1 })
+  ? t('pins.sharedPoint', { names: formatList(props.shared), n: props.shared.length + 1 })
   : '')
 </script>