diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b3e2a6bf..9dae4c94 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -77,7 +77,7 @@ windows-builder-x64:
     - Expand-Archive -Path artifacts.zip -DestinationPath .
     - $env:Path = "C:\msys64\mingw64\bin;C:\msys64\usr\bin;C:\msys64\usr\local\bin;" + $env:Path;
     - $env:MSYSTEM = "MINGW64"
-    - cmake -B build -S . -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -D"babl_DIR=C:/msys64/mingw64" -D"CMAKE_INSTALL_PREFIX:PATH=$CI_PROJECT_DIR\build\install-x64" -D"OpenShotAudio_ROOT=$CI_PROJECT_DIR\build\install-x64" -D"PYTHON_MODULE_PATH=python" -D"RUBY_MODULE_PATH=ruby" -G "MinGW Makefiles" -D"CMAKE_BUILD_TYPE:STRING=Release"
+    - cmake -B build -S . -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -D"babl_DIR=C:/msys64/mingw64" -D"CMAKE_INSTALL_PREFIX:PATH=$CI_PROJECT_DIR\build\install-x64" -D"OpenShotAudio_ROOT=$CI_PROJECT_DIR\build\install-x64" -D"PYTHON_MODULE_PATH=python" -D"RUBY_MODULE_PATH=ruby" -G "MinGW Makefiles" -D"CMAKE_BUILD_TYPE:STRING=Debug"
     - cmake --build build
     - cmake --build build --target coverage
     - cmake --install build