diff --git a/action.yml b/action.yml
index c006822..cd11664 100644
--- a/action.yml
+++ b/action.yml
@@ -14,7 +14,7 @@ runs:
       id: call-previewer
       shell: bash
       env:
-        PREVIEWER_URL: "${{ inputs.previewer-server }}/preview/${{ github.repository }}/${{ github.event.issue.number }}"
+        PREVIEWER_URL: "${{ inputs.previewer-server }}/preview/${{ github.repository }}/${{ github.event.issue.number }}/"
         ARTIFACT_JOB: ${{ inputs.artifact-job }}
       run: |
         PREVIEWER_RESPONSE=$(curl -X POST -f --data-urlencode \"job=${ARTIFACT_JOB}\" ${PREVIEWER_URL})