diff --git a/pkg/harvester/dialog/HarvesterSupportBundle.vue b/pkg/harvester/dialog/HarvesterSupportBundle.vue
index e228c369..8a6e3ab4 100644
--- a/pkg/harvester/dialog/HarvesterSupportBundle.vue
+++ b/pkg/harvester/dialog/HarvesterSupportBundle.vue
@@ -277,8 +277,9 @@ export default {
                 :label="t('harvester.modal.bundle.namespaces.label')"
                 :clearable="true"
                 :multiple="true"
+                :append-to-body="false"
                 :options="namespaceOptions"
-                class="mb-10 label-select"
+                class="mb-10 namespace-select"
                 :tooltip="t('harvester.modal.bundle.namespaces.tooltip', _, true)"
                 @update:value="updateNamespaces"
               />
@@ -372,6 +373,11 @@ export default {
       padding: 10px 0;
       height: 160px;
     }
+    .namespace-select {
+      :deep(.vs__dropdown-menu) {
+        max-height: 210px;
+      }
+    }
   }
 
   div {