diff --git a/.appveyor.yml b/.appveyor.yml
index df3b912a..c7b2c37a 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -11,6 +11,7 @@ environment:
       PLATFORM: Win32-VB6-Binding
       IS_VB6_BINDING: YES
       EXTRA_CMAKE_FLAGS: "-DBUILD_AS_VB6_BINDING=ON -DAUDIO_CODECS_SDL2_HG_BRANCH=release-2.0.12 -DAUDIO_CODECS_SDL2_GIT_BRANCH=983bbf9 -DWITH_SDL2_WASAPI=OFF"
+      APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2015"
     - BUILD_TYPE: MinSizeRel
       COMPILER: MinGW-w32
       COMPILER_FAMILY: MinGW
@@ -18,6 +19,7 @@ environment:
       PLATFORM: Win32-VB6-Binding-SDL-2.0.8
       IS_VB6_BINDING: YES
       EXTRA_CMAKE_FLAGS: "-DBUILD_AS_VB6_BINDING=ON -DAUDIO_CODECS_SDL2_HG_BRANCH=release-2.0.8 -DAUDIO_CODECS_SDL2_GIT_BRANCH=e9fc66a -DWITH_SDL2_WASAPI=OFF"
+      APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2015"
     - BUILD_TYPE: Release
       COMPILER: MSVC15
       COMPILER_FAMILY: MSVC