diff --git a/appveyor.yml b/appveyor.yml
index c12a2501..b75bfd83 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -8,6 +8,7 @@ install:
   - 7z x dependencies2015.zip -odependencies2015
   - set DepsPath32=%CD%\dependencies2015\win32
   - set DepsPath64=%CD%\dependencies2015\win64
+  - set BoostRoot=C:\Libraries\boost_1_67_0
   - call C:\projects\obs-websocket\CI\install-setup-qt.cmd
   - set build_config=RelWithDebInfo
   - call C:\projects\obs-websocket\CI\install-build-obs.cmd
@@ -15,9 +16,9 @@ install:
   - mkdir build32
   - mkdir build64
   - cd ./build32
-  - cmake -G "Visual Studio 14 2015" -DQTDIR="%QTDIR32%" -DLibObs_DIR="C:\projects\obs-studio\build32\libobs" -DLIBOBS_INCLUDE_DIR="C:\projects\obs-studio\libobs" -DLIBOBS_LIB="C:\projects\obs-studio\build32\libobs\%build_config%\obs.lib" -DOBS_FRONTEND_LIB="C:\projects\obs-studio\build32\UI\obs-frontend-api\%build_config%\obs-frontend-api.lib" ..
+  - cmake -G "Visual Studio 14 2015" -DQTDIR="%QTDIR32%" -DBOOST_ROOT="%BoostRoot%" -DLibObs_DIR="C:\projects\obs-studio\build32\libobs" -DLIBOBS_INCLUDE_DIR="C:\projects\obs-studio\libobs" -DLIBOBS_LIB="C:\projects\obs-studio\build32\libobs\%build_config%\obs.lib" -DOBS_FRONTEND_LIB="C:\projects\obs-studio\build32\UI\obs-frontend-api\%build_config%\obs-frontend-api.lib" ..
   - cd ../build64
-  - cmake -G "Visual Studio 14 2015 Win64" -DQTDIR="%QTDIR64%" -DLibObs_DIR="C:\projects\obs-studio\build64\libobs" -DLIBOBS_INCLUDE_DIR="C:\projects\obs-studio\libobs" -DLIBOBS_LIB="C:\projects\obs-studio\build64\libobs\%build_config%\obs.lib" -DOBS_FRONTEND_LIB="C:\projects\obs-studio\build64\UI\obs-frontend-api\%build_config%\obs-frontend-api.lib" ..
+  - cmake -G "Visual Studio 14 2015 Win64" -DQTDIR="%QTDIR64%" -DBOOST_ROOT="%BoostRoot%" -DLibObs_DIR="C:\projects\obs-studio\build64\libobs" -DLIBOBS_INCLUDE_DIR="C:\projects\obs-studio\libobs" -DLIBOBS_LIB="C:\projects\obs-studio\build64\libobs\%build_config%\obs.lib" -DOBS_FRONTEND_LIB="C:\projects\obs-studio\build64\UI\obs-frontend-api\%build_config%\obs-frontend-api.lib" ..
 
 build_script:
   - call msbuild /m /p:Configuration=%build_config% C:\projects\obs-websocket\build32\obs-websocket.sln /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"