diff --git a/cmd/lotus/rpc.go b/cmd/lotus/rpc.go
index 358e4cd3e..edf32b8e5 100644
--- a/cmd/lotus/rpc.go
+++ b/cmd/lotus/rpc.go
@@ -3,6 +3,7 @@ package main
 import (
 	"context"
 	"net/http"
+	_ "net/http/pprof"
 	"os"
 	"os/signal"
 	"syscall"