diff --git a/services/arr/init.nix b/services/arr/init.nix
index 63f8dd3..5f72c0d 100644
--- a/services/arr/init.nix
+++ b/services/arr/init.nix
@@ -8,7 +8,10 @@
       dataDir = service_configs.prowlarr.dataDir;
       apiVersion = "v1";
       networkNamespacePath = "/run/netns/wg";
-      healthChecks = true;
+      networkNamespaceService = "wg";
+      # Synced-app health checks require Sonarr/Radarr to reverse-connect to
+      # prowlarrUrl, which is unreachable across the wg namespace boundary.
+      healthChecks = false;
       syncedApps = [
         {
           name = "Sonarr";