diff --git a/typings/internalBinding/fs.d.ts b/typings/internalBinding/fs.d.ts
index 2d86a412ba686d..d487ce01ee1adc 100644
--- a/typings/internalBinding/fs.d.ts
+++ b/typings/internalBinding/fs.d.ts
@@ -291,6 +291,7 @@ export interface FsBinding {
   utimes: typeof InternalFSBinding.utimes;
   writeBuffer: typeof InternalFSBinding.writeBuffer;
   writeBuffers: typeof InternalFSBinding.writeBuffers;
+  writeFileUtf8: typeof InternalFSBinding.writeFileUtf8;
   writeString: typeof InternalFSBinding.writeString;
 
   getFormatOfExtensionlessFile: typeof InternalFSBinding.getFormatOfExtensionlessFile;