diff --git a/.github/workflows/win.yml b/.github/workflows/win.yml
index ca0c7bf09..6de53f12d 100644
--- a/.github/workflows/win.yml
+++ b/.github/workflows/win.yml
@@ -169,6 +169,8 @@ jobs:
           %TDESKTOP_BUILD_GENERATOR% ^
           %TDESKTOP_BUILD_ARCH% ^
           %TDESKTOP_BUILD_API% ^
+          -D CMAKE_C_FLAGS="/WX" ^
+          -D CMAKE_CXX_FLAGS="/WX" ^
           -D DESKTOP_APP_DISABLE_AUTOUPDATE=OFF ^
           -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF ^
           -D DESKTOP_APP_NO_PDB=ON ^