diff --git a/xpath.d.ts b/xpath.d.ts
index 9d1a734..0b17f44 100644
--- a/xpath.d.ts
+++ b/xpath.d.ts
@@ -11,6 +11,9 @@ export interface XPathSelect {
     (expression: string, node: Node, single: true): SelectSingleReturnType;
 }
 
+export function evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver | null, type: number, result: XPathResult | null): XPathResult;
+export const XPathResult: XPathResult;
+
 /**
  * Evaluate an XPath expression against a DOM node.
  */