diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 2eecc6ae4dd..70ed11a2dba 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -66,6 +66,7 @@ jobs:
           echo "package-name=${PACKAGE_NAME}" >> "${GITHUB_OUTPUT}"
           subject_paths_json=$(jq --compact-output --null-input \
               '$ARGS.positional' --args -- "${SUBJECT_PATHS[@]}")
+          echo "DEBUG=${subject_paths_json}"
           echo "subject-paths=${subject_paths_json}" >> "${GITHUB_OUTPUT}"
 
       - name: Show values
@@ -99,7 +100,7 @@ jobs:
         id: attest
         uses: actions/attest-build-provenance@v1.1.1
         with:
-          subject-path: ${{ fromJson(steps.parse.outputs.subject-paths) }}
+          subject-path: ${{ steps.parse.outputs.subject-paths }}
 
       - name: Show bundle
         run: |