diff --git a/packages/opencode/src/server/routes/instance/httpapi/server.ts b/packages/opencode/src/server/routes/instance/httpapi/server.ts
index 09e25de8c..b74df8deb 100644
--- a/packages/opencode/src/server/routes/instance/httpapi/server.ts
+++ b/packages/opencode/src/server/routes/instance/httpapi/server.ts
@@ -281,7 +281,7 @@ export function createRoutes(
     ]),
     Layer.provide(LayerNode.buildLayer(app)),
     Layer.provide(Layer.succeed(CorsConfig)(corsOptions)),
-    Layer.provide(Observability.layer),
+    Layer.provideMerge(Observability.layer),
   )
 }