diff --git a/util/webhook/webhook.go b/util/webhook/webhook.go
index 70a69f568994..e6d8c6fa1880 100644
--- a/util/webhook/webhook.go
+++ b/util/webhook/webhook.go
@@ -283,7 +283,7 @@ func (a *ArgoCDWebhookHandler) storePreviouslyCachedManifests(app *v1alpha1.Appl
 		return err
 	}
 	var cachedManifests cache.CachedManifestResponse
-	if err := a.repoCache.GetManifests(change.shaBefore, &app.Spec.Source, &clusterInfo, app.Spec.Destination.Namespace, trackingMethod, appInstanceLabelKey, app.Name, &cachedManifests); err == nil {
+	if err := a.repoCache.GetManifests(change.shaBefore, &app.Spec.Source, &clusterInfo, app.Spec.Destination.Namespace, trackingMethod, appInstanceLabelKey, app.Name, &cachedManifests); err != nil {
 		return err
 	}
 	if err = a.repoCache.SetManifests(change.shaAfter, &app.Spec.Source, &clusterInfo, app.Spec.Destination.Namespace, trackingMethod, appInstanceLabelKey, app.Name, &cachedManifests); err != nil {