diff --git a/src/assets/multiselect.css b/src/assets/multiselect.css
index abf471b5..03020958 100644
--- a/src/assets/multiselect.css
+++ b/src/assets/multiselect.css
@@ -55,6 +55,7 @@
 }
 .multiselect:has(.multiselect-single-label .card) {
   --ms-bg: var(--background-default-grey);
+  border: 1px solid var(--background-contrast-grey);
 }
 .multiselect-wrapper {
   --ms-radius: 0.25rem 0.25rem 0 0;
diff --git a/src/components/forms/dataset/SelectDataset.vue b/src/components/forms/dataset/SelectDataset.vue
index 621031c0..900ec92c 100644
--- a/src/components/forms/dataset/SelectDataset.vue
+++ b/src/components/forms/dataset/SelectDataset.vue
@@ -121,9 +121,6 @@ const clear = () => {
 </template>
 
 <style scoped>
-.multiselect {
-  --ms-max-height: 400px;
-}
 .multiselect-single-label {
   position: relative;
   margin-inline-end: auto;