diff --git a/.github/workflows/run_tests_dut.yml b/.github/workflows/run_tests_dut.yml
index fe9bcb5098..ae2f3249a4 100644
--- a/.github/workflows/run_tests_dut.yml
+++ b/.github/workflows/run_tests_dut.yml
@@ -68,6 +68,13 @@ jobs:
           source zephyr/zephyr-env.sh
           west twister --platform ${{inputs.target_board}} --testsuite-root sidewalk --filter runnable --shuffle-tests --shuffle-tests-seed 123 --inline-logs --overflow-as-errors -vvv --prep-artifacts-for-testing --package-artifacts PACKAGE_ARTIFACTS_${{ inputs.subset }}.tar.bz2 --subset ${{ inputs.subset }}/${{ inputs.max_subsets }}
 
+      - name: Replace slash with underscore
+        id: replace
+        run: |
+          TARGET_BOARD=${{ inputs.target_board }}
+          TARGET_BOARD=${TARGET_BOARD//\//_}
+          echo "::set-output name=target_board::$TARGET_BOARD"
+
       - name: Save build artifacts
         uses: actions/upload-artifact@v4
         with:
@@ -128,7 +135,7 @@ jobs:
       - name: Download artifacts
         uses: actions/download-artifact@v4
         with:
-          name:  DUT_artifacts_${{steps.replace.outputs.target_board}}_${{ inputs.subset }}
+          name: DUT_artifacts_${{steps.replace.outputs.target_board}}_${{ inputs.subset }}
 
       - name: Unwrap artifacts
         run: |