diff --git a/manifest.toml b/manifest.toml
index 8bdbe32..d554d9e 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -37,6 +37,7 @@ ram.runtime = "50M"
 [resources]
 
     [resources.ports]
+    main.default = 4200
 
     [resources.permissions]
     main.url = "/"