diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 498c350546..f073019749 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -686,6 +686,7 @@ jobs:
           fi
           [ -x ~/venv/bin/activate ] && source ~/venv/bin/activate
           if [[ "${MATRIX_INSTALL_STEPS}" = *'codeset-test'* ]]; then
+            env | grep -E '(LC_|LANG)' | sort || true
             export LC_ALL=C
             export LC_CTYPE=C
             export LC_NUMERIC=fr_FR.UTF-8
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 352e280762..0f0bd94b1d 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -481,6 +481,7 @@ jobs:
           TFLAGS="-j20 ${TFLAGS}"
           source ~/venv/bin/activate
           if [[ "${MATRIX_INSTALL_STEPS}" = *'codeset-test'* ]]; then
+            env | grep -E '(LC_|LANG)' | sort || true
             export LC_ALL=C
             export LC_CTYPE=C
             export LC_NUMERIC=fr_FR.UTF-8