diff --git a/appveyor.yml b/appveyor.yml
index 9574e2d1f..ddb8db3df 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -8,7 +8,7 @@ environment:
   matrix:
   - configuration: Release
 
-shallow_clone: true
+clone_depth: 1
 
 after_build:
   - mkdir qmapboxgl
@@ -39,6 +39,9 @@ for:
     - '%APPVEYOR_BUILD_FOLDER%\cmake-3.10.1-win64-x64.zip'
 
   install:
+    - git config --system core.longpaths true
+    - git submodule sync
+    - git submodule update --init
     - ps: |
         if (!(Test-Path cmake-3.10.1-win64-x64.zip)) {
             appveyor DownloadFile https://cmake.org/files/v3.10/cmake-3.10.1-win64-x64.zip
@@ -76,6 +79,9 @@ for:
     - '%APPVEYOR_BUILD_FOLDER%\cmake-3.10.1-win64-x64.zip'
 
   install:
+    - git config --system core.longpaths true
+    - git submodule sync
+    - git submodule update --init
     - ps: |
         if (!(Test-Path cmake-3.10.1-win64-x64.zip)) {
             appveyor DownloadFile https://cmake.org/files/v3.10/cmake-3.10.1-win64-x64.zip