diff --git a/.github/workflows/ci_tests.yml b/.github/workflows/ci_tests.yml
index 198fe34..4072d37 100644
--- a/.github/workflows/ci_tests.yml
+++ b/.github/workflows/ci_tests.yml
@@ -39,7 +39,7 @@ jobs:
           CC: ${{ matrix.config.cc }}
           CXX: ${{ matrix.config.cxx }}
         run: |
-          cmake -S . -B cmake-build
+          cmake -S . -B cmake-build -DCMAKE_CXX_COMPILER={CXX} -DCMAKE_C_COMPILER={CC}
 
       - name: Build main target
         run: |