diff --git a/SparkleShare/Windows/build.cmd b/SparkleShare/Windows/build.cmd
index f38f4de7..c9caebd9 100644
--- a/SparkleShare/Windows/build.cmd
+++ b/SparkleShare/Windows/build.cmd
@@ -2,5 +2,6 @@
 set WinDirNet=%WinDir%\Microsoft.NET\Framework
 set msbuild="%WinDirNet%\v3.5\msbuild.exe"
 if not exist %msbuild% set msbuild="%WinDirNet%\v4.0.30319\msbuild.exe"
+git submodule update --init
 
 %msbuild% /t:Rebuild /p:Configuration=Release /p:Platform="Any CPU" %~dp0\SparkleShare.sln