diff --git a/appveyor.yml b/appveyor.yml
index a668be1f..d8c9d4f5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -29,6 +29,12 @@ install:
 build: false
 
 test_script:
+  - if "%PLATFORM%" == "x86"
+    call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
+  - if "%PLATFORM%" == "x64"
+    call "C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\SetEnv.cmd" /x64
+  - if "%PLATFORM%" == "x64"
+    call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86_amd64
   - set PATH=%PATH%;%QTDIR%\bin
   - qmake DEFINES+=BOOST_INCLUDEDIR=C:\Libraries\boost_1_66_0 DEFINES+=CGAL_DIR=%APPVEYOR_BUILD_FOLDER%\CGAL-4.11.1
   - nmake -f Makefile.Release