diff --git a/src/doctor.ts b/src/doctor.ts
index d74206d..0828861 100644
--- a/src/doctor.ts
+++ b/src/doctor.ts
@@ -12,24 +12,23 @@ export class Doctor {
 
   scriptVersions: FileEntry = new Map()
 
-  constructor(public fileNames: string[], private compilerOptions: _ts.CompilerOptions, ts: typeof _ts) {
-    const host = createHost(fileNames, compilerOptions, this.scriptVersions, ts)
+  constructor(public fileNames: string[], private config: _ts.ParsedCommandLine, ts: typeof _ts) {
+    const host = createHost(fileNames, config, this.scriptVersions, ts)
     this.service = createService(host, ts)
     this.reporter = new Reporter(ts)
   }
 
   static fromConfigFile(configPath: string, ts: typeof _ts): Doctor {
     const content = fs.readFileSync(configPath).toString();
-    const { config } = ts.parseConfigFileTextToJson(configPath, content)
-    const parsed = ts.parseJsonConfigFileContent(
-        config,
+    const { config: json } = ts.parseConfigFileTextToJson(configPath, content)
+    const config = ts.parseJsonConfigFileContent(
+        json,
         ts.sys,
         path.dirname(configPath)
     );
-    const compilerOptions = parsed.options
 
-    const defaultLibFileName = _ts.getDefaultLibFileName(compilerOptions)
-    const libs =  [defaultLibFileName, ...(compilerOptions.lib || [])]
+    const defaultLibFileName = _ts.getDefaultLibFileName(config.options)
+    const libs =  [defaultLibFileName, ...(config.options.lib || [])]
     const allLibs = getAllLibs(uniq(libs))
 
     /**
@@ -39,11 +38,11 @@ export class Doctor {
      * we need to manually added lib.*.d.ts. 
      */
     const fileNames = [
-      ...parsed.fileNames,
+      ...config.fileNames,
       ...allLibs
     ]
 
-    return new Doctor(fileNames, compilerOptions, ts)
+    return new Doctor(fileNames, config, ts)
   }
 
   getSemanticDiagnostics() {
diff --git a/src/langSvc/createHost.ts b/src/langSvc/createHost.ts
index 9934e3b..5718ec7 100644
--- a/src/langSvc/createHost.ts
+++ b/src/langSvc/createHost.ts
@@ -6,7 +6,7 @@ import { libDTS } from '../gen/libDTS'
 
 const libDTSRegexp = /^lib\..*\.d\.ts$/
 
-export const createHost = (fileNames: string[], compilerOptions: _ts.CompilerOptions, fileEntry: FileEntry, ts: typeof _ts): _ts.LanguageServiceHost => {
+export const createHost = (fileNames: string[], config: _ts.ParsedCommandLine, fileEntry: FileEntry, ts: typeof _ts): _ts.LanguageServiceHost => {
   const getCurrentVersion = (fileName: string) => fileEntry.has(fileName) ? fileEntry.get(fileName)!.version : 0
   const getTextFromSnapshot = (snapshot: _ts.IScriptSnapshot) => snapshot.getText(0, snapshot.getLength())
 
@@ -66,7 +66,7 @@ export const createHost = (fileNames: string[], compilerOptions: _ts.CompilerOpt
       }
     },
     getCurrentDirectory: () => process.cwd(),
-    getCompilationSettings: () => compilerOptions,
+    getCompilationSettings: () => config.options,
     getDefaultLibFileName: options => ts.getDefaultLibFileName(options),
     resolveModuleNames: (moduleNames, containingFile, _, __, options) => {
       const ret: (_ts.ResolvedModule | undefined)[] = moduleNames.map(name => {
@@ -87,6 +87,7 @@ export const createHost = (fileNames: string[], compilerOptions: _ts.CompilerOpt
       });
       return ret;
     },
+    getProjectReferences: () => config.projectReferences,
     fileExists: moduleResolutionHost.fileExists,
     readFile: moduleResolutionHost.readFile,
     readDirectory: ts.sys.readDirectory,