diff --git a/appveyor.yml b/appveyor.yml
index 6fbda7ca..1c44ff87 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -13,6 +13,7 @@ environment:
 
 # scripts that run after cloning repository
 install:
+- git submodule update --init --recursive
 - set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
 - go version
 - go env