diff --git a/docs/6.bridge/7.runtime-config.md b/docs/6.bridge/7.runtime-config.md
index 73e8e7d703..11d9e397b7 100644
--- a/docs/6.bridge/7.runtime-config.md
+++ b/docs/6.bridge/7.runtime-config.md
@@ -1,5 +1,9 @@
 # Runtime Config
 
+::alert{type=warning}
+When using `runtimeConfig` option, [nitro](/docs/bridge/nitro) must have been configured.
+::
+
 ## Update Runtime Config
 
 Nuxt 3 approaches runtime config differently than Nuxt 2, using a new combined `runtimeConfig` option.