diff --git a/.appveyor-vcpkg.yml b/.appveyor-vcpkg.yml
index 6ec5570e9..1f6825934 100644
--- a/.appveyor-vcpkg.yml
+++ b/.appveyor-vcpkg.yml
@@ -56,7 +56,9 @@ build_script:
   - mkdir build
   - cd build
   - cmake -G "%generator%" %CMAKE_FLAGS% -Denable-pkgconfig=0 -DCMAKE_TOOLCHAIN_FILE=c:/Tools/vcpkg/scripts/buildsystems/vcpkg.cmake ..
-  - cmake --build . --config Release
+  - cmake --build . --config Release # build libfluidsynth and fluidsynth exec
+  - cmake -Denable-tests=1 ..
+  - cmake --build . --config Release --target check # build unittests
 
 after_build:
   - 7z a fluidsynth.zip %APPVEYOR_BUILD_FOLDER%\build\src\Release\*
diff --git a/.appveyor.yml b/.appveyor.yml
index 9dc5fcdf9..f4a48ef8e 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -58,7 +58,9 @@ build_script:
   - mkdir build
   - cd build
   - cmake -G "%generator%" ..
-  - cmake --build . --config Release
+  - cmake --build . --config Release # build libfluidsynth and fluidsynth exec
+  - cmake -Denable-tests=1 ..
+  - cmake --build . --config Release --target check # build unittests
 
 after_build:
   - 7z a fluidsynth.zip %APPVEYOR_BUILD_FOLDER%\build\src\Release\* c:\deps\bin\libglib*.dll c:\deps\bin\libgthread*.dll c:\deps\bin\*intl*.dll