diff --git a/.github/workflows/http3-linux.yml b/.github/workflows/http3-linux.yml
index bb8b5faf63..ca6ed88b17 100644
--- a/.github/workflows/http3-linux.yml
+++ b/.github/workflows/http3-linux.yml
@@ -469,6 +469,8 @@ jobs:
           MATRIX_PKG_CONFIG_PATH: '${{ matrix.build.PKG_CONFIG_PATH }}'
         run: |
           [ -n "${MATRIX_PKG_CONFIG_PATH}" ] && export PKG_CONFIG_PATH="${MATRIX_PKG_CONFIG_PATH}:${PKG_CONFIG_PATH}"
+          echo "|${PKG_CONFIG_PATH}|"
+          pkg-config --debug --exists gnutls || true
           if [ "${MATRIX_BUILD}" = 'cmake' ]; then
             cmake -B bld -G Ninja \
               -DCMAKE_C_COMPILER_TARGET="$(uname -m)-pc-linux-gnu" -DBUILD_STATIC_LIBS=ON \