diff --git a/src/app/api/machines/heartbeat/route.ts b/src/app/api/machines/heartbeat/route.ts
index 8ccc3fa..259094a 100644
--- a/src/app/api/machines/heartbeat/route.ts
+++ b/src/app/api/machines/heartbeat/route.ts
@@ -57,6 +57,7 @@ export async function POST(request: Request) {
     return jsonWithCors(response, 200, request.headers.get("origin"), CORS_METHODS)
   } catch (error) {
     console.error("[machines.heartbeat] Falha ao registrar heartbeat", error)
-    return jsonWithCors({ error: "Falha ao registrar heartbeat" }, 500, request.headers.get("origin"), CORS_METHODS)
+    const details = error instanceof Error ? error.message : String(error)
+    return jsonWithCors({ error: "Falha ao registrar heartbeat", details }, 500, request.headers.get("origin"), CORS_METHODS)
   }
 }
diff --git a/src/app/api/machines/register/route.ts b/src/app/api/machines/register/route.ts
index 18cfae9..206aa7a 100644
--- a/src/app/api/machines/register/route.ts
+++ b/src/app/api/machines/register/route.ts
@@ -102,6 +102,7 @@ export async function POST(request: Request) {
     )
   } catch (error) {
     console.error("[machines.register] Falha no provisionamento", error)
-    return jsonWithCors({ error: "Falha ao provisionar máquina" }, 500, request.headers.get("origin"), CORS_METHODS)
+    const details = error instanceof Error ? error.message : String(error)
+    return jsonWithCors({ error: "Falha ao provisionar máquina", details }, 500, request.headers.get("origin"), CORS_METHODS)
   }
 }