diff --git a/proxy/internal/handler_cache.go b/proxy/internal/handler_cache.go
index 896ff6e0..2eae3322 100644
--- a/proxy/internal/handler_cache.go
+++ b/proxy/internal/handler_cache.go
@@ -63,7 +63,7 @@ func CreateInboundHandler(name string, space app.Space, rawConfig []byte, meta *
 func CreateOutboundHandler(name string, space app.Space, rawConfig []byte, meta *proxy.OutboundHandlerMeta) (proxy.OutboundHandler, error) {
 	creator, found := outboundFactories[name]
 	if !found {
-		return nil, ErrorNameExists
+		return nil, ErrorProxyNotFound
 	}
 
 	if len(rawConfig) > 0 {