diff --git a/.github/workflows/witness.yml b/.github/workflows/witness.yml
index 757ff7f..d3aef34 100644
--- a/.github/workflows/witness.yml
+++ b/.github/workflows/witness.yml
@@ -60,7 +60,7 @@ jobs:
             with:
               step: pre-${{ inputs.step }}
               attestations: ${{ inputs.attestations }}
-              command: /bin/sh -c "${{ inputs.pre-command }}
+              command: /bin/sh -c "${{ inputs.pre-command }}"
           - if: ${{ inputs.pre-command != '' && inputs.pull_request == true }}
             run: ${{ inputs.pre-command }}