diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 8199077f..865edb0e 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -18,6 +18,8 @@ jobs:
     - uses: actions/checkout@v4
     - name: Install system packages
       run: sudo apt install -y libgtk-4-dev libglib2.0-dev libadwaita-1-dev
+    - name: Set PKG_CONFIG_PATH
+      run: echo "PKG_CONFIG_PATH=/usr/lib/x86_64-linux-gnu/pkgconfig" >> $GITHUB_ENV
     - name: Build
       run: cargo build --verbose
     - name: Run tests