diff --git a/gulp-help-doc/gulp-help-doc-tests.ts b/gulp-help-doc/gulp-help-doc-tests.ts
index a3eca8ecae..f06c25e55c 100644
--- a/gulp-help-doc/gulp-help-doc-tests.ts
+++ b/gulp-help-doc/gulp-help-doc-tests.ts
@@ -15,7 +15,7 @@ gulp.task('demo', function() {});
 
 let logger: {
     output: string,
-    log(msg: string)
+    log(msg: string): any
 } = {
     output: '',
     log: msg => logger.output += msg + '\n'
diff --git a/gulp-help-doc/gulp-help-doc.d.ts b/gulp-help-doc/gulp-help-doc.d.ts
index a6c1377b26..aa15e1cf17 100644
--- a/gulp-help-doc/gulp-help-doc.d.ts
+++ b/gulp-help-doc/gulp-help-doc.d.ts
@@ -10,7 +10,7 @@
 declare module "gulp-help-doc" {
 
     import gulp = require('gulp');
-    import Promise = require('es6-promise');
+    import promise = require('es6-promise');
 
     namespace usage {