diff --git a/types/handlebars/index.d.ts b/types/handlebars/index.d.ts
index 480f91f6f0..6272dde3a0 100644
--- a/types/handlebars/index.d.ts
+++ b/types/handlebars/index.d.ts
@@ -40,6 +40,7 @@ declare namespace Handlebars {
     export function unregisterHelper(name: string): void;
 
     export function registerPartial(name: string, fn: Template): void;
+    export function registerPartial(spec: { [name: string]: HandlebarsTemplateDelegate }): void;
     export function unregisterPartial(name: string): void;
 
     // TODO: replace Function with actual signature