diff --git a/.github/workflows/build-windows.yml b/.github/workflows/build-windows.yml
index 26886ea..a2bdfbf 100644
--- a/.github/workflows/build-windows.yml
+++ b/.github/workflows/build-windows.yml
@@ -59,7 +59,7 @@ jobs:
             mingw-w64-x86_64-gst-libav
 
       - name: Set PKG_CONFIG environment variable
-        run: echo "PKG_CONFIG=C:/msys64/mingw64/bin/pkg-config.exe" >> $GITHUB_ENV
+        run: echo "PKG_CONFIG_EXECUTABLE=C:/msys64/mingw64/bin/pkg-config.exe" >> $GITHUB_ENV
 
       - name: Install Qt
         uses: jurplel/install-qt-action@v3