diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 50fffead46..def44ffbc1 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -480,8 +480,8 @@ jobs:
         run: |
           TFLAGS="-j20 ${TFLAGS}"
           source ~/venv/bin/activate
+          export LC_ALL=C
           export LC_CTYPE=C
-          export LC_NUMERIC=fr_FR.UTF-8
           rm -f ~/.curlrc
           if [ "${MATRIX_BUILD}" = 'cmake' ]; then
             cmake --build bld --verbose --target "${TEST_TARGET}"