diff --git a/src/ipx.ts b/src/ipx.ts
index 197b6a50e..5c36db4fc 100644
--- a/src/ipx.ts
+++ b/src/ipx.ts
@@ -46,7 +46,7 @@ export const ipxSetup: IPXSetupT = setupOptions => (providerOptions, moduleOptio
   }
 
   nitro.options._config.runtimeConfig = nitro.options._config.runtimeConfig || {}
-  nitro.options.runtimeConfig.ipx = ipxOptions
+  nitro.options.runtimeConfig.ipx = defu(nitro.options.runtimeConfig.ipx, ipxOptions)
 
   const ipxHandler = <NitroEventHandler>{
     route: `${ipxBaseURL}/**`,