diff --git a/should-promised/should-promised-tests.ts b/should-promised/should-promised-tests.ts
index 03167e663..50ea0b59a 100644
--- a/should-promised/should-promised-tests.ts
+++ b/should-promised/should-promised-tests.ts
@@ -7,9 +7,9 @@ var promise: Promise<number> = new Promise<number>(function (resolve, reject) {}
 promise.should.be.Promise;
 (10).should.not.be.a.Promise;
 
-promise.should.be.fulfilled;
+promise.should.be.fulfilled();
 
-promise.should.be.rejected;
+promise.should.be.rejected();
 
 promise.should.be.rejectedWith(Error);
 promise.should.be.rejectedWith('boom');
diff --git a/should-promised/should-promised.d.ts b/should-promised/should-promised.d.ts
index c6c95ba98..f7e2a97f5 100644
--- a/should-promised/should-promised.d.ts
+++ b/should-promised/should-promised.d.ts
@@ -5,8 +5,8 @@
 
 interface ShouldAssertion {
     Promise: ShouldAssertion;
-    fulfilled: ShouldAssertion;
-    rejected: ShouldAssertion;
+    fulfilled(): ShouldAssertion;
+    rejected(): ShouldAssertion;
     rejectedWith(message: (string | Function | RegExp), properties?: Object): ShouldAssertion;
     rejectedWith(message: Object): ShouldAssertion;
     finally: ShouldAssertion;