diff --git a/web/src/Service.jsx b/web/src/Service.jsx
index c7e592f..6b74be0 100644
--- a/web/src/Service.jsx
+++ b/web/src/Service.jsx
@@ -197,6 +197,7 @@ function Service(props) {
                   </div>
                 </div>
                 } */}
+                { kustomization && source &&
                 <div>
                   <p className="text-base text-neutral-600">Sync</p>
                   <div className="flex text-sm text-neutral-600">
@@ -204,6 +205,7 @@ function Service(props) {
                     <div className="ml-2 field flex-1"><RevisionWidget kustomization={kustomization} source={source} handleNavigationSelect={handleNavigationSelect} /></div>
                   </div>
                 </div>
+                }
                 { helmRelease &&
                 <div>
                   <p className="text-base text-neutral-600">Helm Status</p>
diff --git a/web/src/utils.js b/web/src/utils.js
index 5ada563..f3daf49 100644
--- a/web/src/utils.js
+++ b/web/src/utils.js
@@ -1,6 +1,10 @@
 import jp from 'jsonpath'
 
 export function findSource(sources, reconciler) {
+  if (!reconciler) { // HelmReleases can be applied on the cluster manually => no reconciler
+    return undefined
+  }
+
   let namespace = reconciler.metadata.namespace
   if (reconciler.spec.sourceRef.namespace) { // namespace is not mandatory
     namespace = reconciler.spec.sourceRef.namespace