diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 1ab21fa9..b15db55a 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -88,6 +88,7 @@ jobs:
       run: meson test -C _build
       env:
         ASAN_OPTIONS: detect_leaks=0 # Right now we're not fully clean, but this gets us use-after-free etc
+        LC_ALL: en_US.UTF-8
     - name: Collect logs on failure
       if: failure() || cancelled()
       run: mv _build/meson-logs/* test-logs/ || true
@@ -151,6 +152,7 @@ jobs:
       run: make -C _build check -j $(getconf _NPROCESSORS_ONLN)
       env:
         ASAN_OPTIONS: detect_leaks=0 # Right now we're not fully clean, but this gets us use-after-free etc
+        LC_ALL: en_US.UTF-8
     - name: Collect overall test logs on failure
       if: failure()
       run: mv _build/test-suite.log test-logs/ || true