diff --git a/lib/internal/fs/sync.js b/lib/internal/fs/sync.js
index 56f82fd48426c6..f2a8c8a95638dd 100644
--- a/lib/internal/fs/sync.js
+++ b/lib/internal/fs/sync.js
@@ -89,6 +89,8 @@ function close(fd) {
 }
 
 function fsync(fd) {
+  fd = getValidatedFd(fd);
+
   return binding.fsyncSync(fd);
 }
 
diff --git a/typings/internalBinding/fs.d.ts b/typings/internalBinding/fs.d.ts
index a4ea9987cd8198..9e91a72ea5794d 100644
--- a/typings/internalBinding/fs.d.ts
+++ b/typings/internalBinding/fs.d.ts
@@ -94,11 +94,11 @@ declare namespace InternalFSBinding {
   function fstat(fd: number, useBigint: boolean, usePromises: typeof kUsePromises): Promise<Float64Array | BigUint64Array>;
   function fstat(fd: number, useBigint: true, usePromises: typeof kUsePromises): Promise<BigUint64Array>;
   function fstat(fd: number, useBigint: false, usePromises: typeof kUsePromises): Promise<Float64Array>;
-  function fsync(fd: number): void;
 
-  function fsyncSync(fd: number, req: FSReqCallback): void;
-  function fsyncSync(fd: number, req: undefined, ctx: FSSyncContext): void;
-  function fsyncSync(fd: number, usePromises: typeof kUsePromises): Promise<void>;
+  function fsync(fd: number, req: FSReqCallback): void;
+  function fsync(fd: number, req: undefined, ctx: FSSyncContext): void;
+  function fsync(fd: number, usePromises: typeof kUsePromises): Promise<void>;
+  function fsyncSync(fd: number): void;
 
   function ftruncate(fd: number, len: number, req: FSReqCallback): void;
   function ftruncate(fd: number, len: number, req: undefined, ctx: FSSyncContext): void;