diff --git a/appveyor.yml b/appveyor.yml
index 683c2b335..032469fbb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -5,6 +5,9 @@ environment:
   matrix:
     - nodejs_version: 7.3.0
 
+services:
+  - mongodb
+
 build: off
 
 install: