diff --git a/convex/machines.ts b/convex/machines.ts
index d722107..83e5174 100644
--- a/convex/machines.ts
+++ b/convex/machines.ts
@@ -14,7 +14,7 @@ type NormalizedIdentifiers = {
 }
 
 function getProvisioningSecret() {
-  const secret = process.env.MACHINE_PROVISIONING_SECRET
+  const secret = process.env["MACHINE_PROVISIONING_SECRET"]
   if (!secret) {
     throw new ConvexError("Provisionamento de máquinas não configurado")
   }
@@ -22,7 +22,7 @@ function getProvisioningSecret() {
 }
 
 function getTokenTtlMs(): number {
-  const raw = process.env.MACHINE_TOKEN_TTL_MS
+  const raw = process.env["MACHINE_TOKEN_TTL_MS"]
   if (!raw) return DEFAULT_TOKEN_TTL_MS
   const parsed = Number(raw)
   if (!Number.isFinite(parsed) || parsed < 60_000) {