diff --git a/node/node.d.ts b/node/node.d.ts
index b1e849535..deae056a1 100644
--- a/node/node.d.ts
+++ b/node/node.d.ts
@@ -650,6 +650,18 @@ declare module "child_process" {
         env?: any;
         encoding?: string;
     }): ChildProcess;
+    export function execSync(command: string, options?: {
+        cwd?: string;
+        input?: string|Buffer;
+        stdio?: any;
+        env?: any;
+        uid?: number;
+        gid?: number;
+        timeout?: number;
+        maxBuffer?: number;
+        killSignal?: string;
+        encoding?: string;
+    }): ChildProcess;
 }
 
 declare module "url" {