diff --git a/extensions/html/server/src/htmlServerMain.ts b/extensions/html/server/src/htmlServerMain.ts
index 40c1cbe8746ee212a54d902e353a7979a8d3e72c..741bc8307faab64366eff63a480c0da0faeb27ae 100644
--- a/extensions/html/server/src/htmlServerMain.ts
+++ b/extensions/html/server/src/htmlServerMain.ts
@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 'use strict';
 
-import { createConnection, IConnection, TextDocuments, InitializeParams, InitializeResult } from 'vscode-languageserver';
+import { createConnection, IConnection, TextDocuments, InitializeParams, InitializeResult, FormattingOptions } from 'vscode-languageserver';
 
 import { HTMLDocument, getLanguageService, CompletionConfiguration, HTMLFormatConfiguration, DocumentContext } from 'vscode-html-languageservice';
 import { getLanguageModelCache } from './languageModelCache';
@@ -97,7 +97,7 @@ function merge(src: any, dst: any): any {
 	return dst;
 }
 
-function getFormattingOptions(formatParams: any) {
+function getFormattingOptions(formatParams: FormattingOptions) {
 	let formatSettings = languageSettings && languageSettings.format;
 	if (!formatSettings) {
 		return formatParams;
@@ -107,12 +107,12 @@ function getFormattingOptions(formatParams: any) {
 
 connection.onDocumentFormatting(formatParams => {
 	let document = documents.get(formatParams.textDocument.uri);
-	return languageService.format(document, null, getFormattingOptions(formatParams));
+	return languageService.format(document, null, getFormattingOptions(formatParams.options));
 });
 
 connection.onDocumentRangeFormatting(formatParams => {
 	let document = documents.get(formatParams.textDocument.uri);
-	return languageService.format(document, formatParams.range, getFormattingOptions(formatParams));
+	return languageService.format(document, formatParams.range, getFormattingOptions(formatParams.options));
 });
 
 connection.onDocumentLinks(documentLinkParam => {