diff --git a/.github/workflows/start_slab.yml b/.github/workflows/start_slab.yml
index cd8d79bf4..9f49dd3a5 100644
--- a/.github/workflows/start_slab.yml
+++ b/.github/workflows/start_slab.yml
@@ -48,7 +48,7 @@ jobs:
         shell: bash
         run: |
           GIT_SHA="$(git --no-pager show -s --format="%H" origin/${{ env.GIT_REF }})"
-          echo -n '{"command": "${{ inputs.command }}", "git_ref": "${{ env.GIT_REF }}", "sha":"'${GIT_SHA}'", "user_inputs": "${inputs.user_inputs}"}' > command.json
+          echo -n '{"command": "${{ inputs.command }}", "git_ref": "${{ env.GIT_REF }}", "sha":"'${GIT_SHA}'", "user_inputs": "${{ inputs.user_inputs }}"}' > command.json
           cat command.json
           SIGNATURE="$(slab/scripts/hmac_calculator.sh command.json '${{ secrets.JOB_SECRET }}')"
           curl -v -k \