diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 3961f9fdf..adbe4762a 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -31,6 +31,7 @@ jobs:
       run: |
         mkdir -p _build
         pushd _build
+        export -n BOOST_ROOT BOOST_INCLUDEDIR BOOST_LIBRARYDIR
         cmake -D CMAKE_BUILD_TYPE=Release \
               -D CMAKE_CXX_OUTPUT_EXTENSION_REPLACE=ON \
               -D CMAKE_C_COMPILER=gcc \
@@ -89,6 +90,7 @@ jobs:
       run: |
         mkdir -p _build
         pushd _build
+        export -n BOOST_ROOT BOOST_INCLUDEDIR BOOST_LIBRARYDIR
         cmake -D CMAKE_BUILD_TYPE=Debug \
               -D CMAKE_CXX_OUTPUT_EXTENSION_REPLACE=ON \
               -D CMAKE_C_COMPILER=gcc \