diff --git a/composer.json b/composer.json
index 8d02970..66819d1 100644
--- a/composer.json
+++ b/composer.json
@@ -16,6 +16,9 @@
   "conflict": {
       "drupal/core": "<9.1"
   },
+  "suggest": {
+      "drupal/coi": "Some configuration fields work with Config Override Inspector."
+  },
   "authors": [
     {
       "name": "Islandora Foundation",
diff --git a/src/Form/OpenSeadragonSettingsForm.php b/src/Form/OpenSeadragonSettingsForm.php
index 0641d5a..88bb4b0 100644
--- a/src/Form/OpenSeadragonSettingsForm.php
+++ b/src/Form/OpenSeadragonSettingsForm.php
@@ -96,6 +96,9 @@ public function buildForm(array $form, FormStateInterface $form_state) {
         '#default_value' => $this->seadragonConfig->getIiifAddress(),
         '#required' => TRUE,
         '#description' => t('Please enter the image server location without trailing slash. eg:  http://www.example.org/iiif/2.'),
+        '#config' => [
+          'key' => 'openseadragon.settings:iiif_server',
+        ],
       ],
       'manifest_view' => [
         '#type' => 'select',