diff --git a/.travis.yml b/.travis.yml
index 4b1ab15e..2bc5872d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -247,6 +247,8 @@ install:
   - git clone -b $TRAVIS_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
   - cd boost-root
   - git submodule update --init tools/build
+  - git submodule update --init tools/boost_install
+  - git submodule update --init libs/headers
   - git submodule update --init libs/config
   - git submodule update --init libs/core
   - git submodule update --init libs/container_hash
diff --git a/appveyor.yml b/appveyor.yml
index b131adcd..721a62fe 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -45,6 +45,8 @@ install:
   - git clone -b %APPVEYOR_REPO_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
   - cd boost-root
   - git submodule update --init tools/build
+  - git submodule update --init tools/boost_install
+  - git submodule update --init libs/headers
   - git submodule update --init libs/config
   - git submodule update --init libs/core
   - git submodule update --init libs/container_hash