diff --git a/.github/workflows/ds18b20-heltec-v3.yml b/.github/workflows/ds18b20-heltec-v3.yml
index efc7b91e5..263b71792 100644
--- a/.github/workflows/ds18b20-heltec-v3.yml
+++ b/.github/workflows/ds18b20-heltec-v3.yml
@@ -37,4 +37,4 @@ jobs:
           submodules: recursive
       - uses: ./.github/actions/setup-native
       - name: Run DS18B20 unit tests
-        run: platformio test -e native-ds18b20 -f test_ds18b20
+        run: PLATFORMIO_TEST_DIR=test/test_ds18b20 platformio test -e native-ds18b20
diff --git a/variants/native/ds18b20/platformio.ini b/variants/native/ds18b20/platformio.ini
index a9df04bd1..ec26417b0 100644
--- a/variants/native/ds18b20/platformio.ini
+++ b/variants/native/ds18b20/platformio.ini
@@ -2,4 +2,4 @@
 extends = native_base
 test_build_src = false
 lib_deps =
-lib_ldf_mode = off
+lib_ldf_mode = chain