diff --git a/appveyor.yml b/appveyor.yml
index 0941980..e6ad817 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,6 @@
 install:
   - cd c:\projects
+  - git submodule init && git submodule update
   - ps: |
         $wc = New-Object System.Net.WebClient
         try