diff --git a/lib/http/rpc.js b/lib/http/rpc.js
index 5cb9ca21..aff67b4b 100644
--- a/lib/http/rpc.js
+++ b/lib/http/rpc.js
@@ -4125,7 +4125,7 @@ RPC.prototype.setloglevel = function setloglevel(args) {
 
   this.logger.level = level;
 
-  return null;
+  return Promise.resolve(null);
 };
 
 RPC.prototype.restartsync = function restartsync(args) {
@@ -4136,7 +4136,7 @@ RPC.prototype.restartsync = function restartsync(args) {
   this.chain.synced = false;
   this.pool.startSync();
 
-  return null;
+  return Promise.resolve(null);
 };
 
 /*