diff --git a/drivers/rptun/rptun.c b/drivers/rptun/rptun.c
index 93a018cb871..1021e06d108 100644
--- a/drivers/rptun/rptun.c
+++ b/drivers/rptun/rptun.c
@@ -1104,7 +1104,8 @@ int rptun_initialize(FAR struct rptun_dev_s *dev)
     }
 
 #ifdef CONFIG_RPTUN_PM
-  pm_wakelock_init(&priv->wakelock, "rptun", PM_IDLE_DOMAIN, PM_IDLE);
+  snprintf(name, sizeof(name), "rptun-%s", RPTUN_GET_CPUNAME(dev));
+  pm_wakelock_init(&priv->wakelock, name, PM_IDLE_DOMAIN, PM_IDLE);
 #endif
 
   return OK;