diff --git a/datagouv-components/src/components/ResourceAccordion/MapContainer.client.vue b/datagouv-components/src/components/ResourceAccordion/MapContainer.client.vue
index 0dea5ab8b..cd3251c32 100644
--- a/datagouv-components/src/components/ResourceAccordion/MapContainer.client.vue
+++ b/datagouv-components/src/components/ResourceAccordion/MapContainer.client.vue
@@ -96,7 +96,10 @@ async function displayMap() {
 
   const attributions = new GeoportalAttribution({
     position: 'bottom-right',
+    // collapsed option is ignored by the library, thus the override below
+    // see https://github.com/IGNF/geopf-extensions-openlayers/issues/497
   })
+  attributions.setCollapsed(false)
   map.addControl(attributions)
 
   const layerImport = new LayerImport({