diff --git a/appveyor.yml b/appveyor.yml
index 10703d7..1e3b679 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -10,6 +10,8 @@ dotnet_csproj:
   informational_version: '{version}'
 build_script:
 - cmd: >-
+    git submodule update --init --recursive
+
     build_all.bat
 artifacts:
   - path: src/SpriteFontPlus/bin/MonoGame/Release/SpriteFontPlus.$(appveyor_build_version).nupkg