diff --git a/library/components/legends/LegendMobile.vue b/library/components/legends/LegendMobile.vue
index bbcc6f647..279313d5e 100644
--- a/library/components/legends/LegendMobile.vue
+++ b/library/components/legends/LegendMobile.vue
@@ -868,8 +868,8 @@ onBeforeUnmount(() => {
 // map's first drag. On a phone that drag may never come, and the expanded credit then runs across the top of
 // the map for good, under the map's own top overlays. So CREDIT_FOLD_MS after it first shows expanded, fold it the way the engine's drag does (drop the
 // -compact-show class); a tap on the (i) still expands it. The map may still be loading its style when the
-// sheet mounts, so look every half second, for up to 30 s; stop once the credit is there and folded (a drag
-// or a tap got there first) or is not compact at this width.
+// sheet mounts, and an engine may mark it compact only after the map is ready, so look every half second, for
+// up to 30 s; stop once the credit is compact and folded (a drag or a tap got there first).
 const CREDIT_FOLD_MS = 3000
 let _creditTimer = 0
 function watchCredit(triesLeft) {
@@ -883,7 +883,7 @@ function watchCredit(triesLeft) {
     return
   }
   const credit = root.querySelector('.maplibregl-ctrl-attrib, .mapboxgl-ctrl-attrib')
-  if (credit && !/attrib-empty/.test(credit.className)) return
+  if (credit && /(maplibregl|mapboxgl)-compact(\s|$)/.test(credit.className)) return
   if (triesLeft > 0) _creditTimer = setTimeout(() => watchCredit(triesLeft - 1), 500)
 }
 onMounted(() => watchCredit(60))