diff --git a/.travis.yml b/.travis.yml
index ff6fab5..6b7ec2f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,19 +16,17 @@ branches:
     - develop
 
 install:
-  - git clone -b $TRAVIS_BRANCH https://github.com/boostorg/boost.git boost
-  - cd boost
+  - cd ..
+  - git clone -b $TRAVIS_BRANCH https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
   - git submodule init libs/assert
   - git submodule init libs/config
-  - git submodule init libs/core
   - git submodule init libs/predef
   - git submodule init libs/static_assert
   - git submodule init libs/type_traits
   - git submodule init tools/build
   - git submodule update
-  - cd libs/core
-  - git checkout -q $TRAVIS_COMMIT
-  - cd ../..
+  - cp -r $TRAVIS_BUILD_DIR/* libs/core
   - ./bootstrap.sh
   - ./b2 headers
 
diff --git a/appveyor.yml b/appveyor.yml
index a915c65..501288d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -12,19 +12,17 @@ branches:
     - develop
 
 install:
-  - git clone -b %APPVEYOR_REPO_BRANCH% https://github.com/boostorg/boost.git boost
-  - cd boost
+  - cd ..
+  - git clone -b %APPVEYOR_REPO_BRANCH% https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
   - git submodule init libs/assert
   - git submodule init libs/config
-  - git submodule init libs/core
   - git submodule init libs/predef
   - git submodule init libs/static_assert
   - git submodule init libs/type_traits
   - git submodule init tools/build
   - git submodule update
-  - cd libs\core
-  - git checkout -q %APPVEYOR_REPO_COMMIT%
-  - cd ..\..
+  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\core
   - bootstrap
   - b2 headers