diff --git a/action.yml b/action.yml
index 0fcb2ce..557321f 100644
--- a/action.yml
+++ b/action.yml
@@ -33,6 +33,11 @@ runs:
         echo BACKUP_S3_ENDPOINT=${{ env.DEVOPS_FORGEJO_ELYSIUM_ORG_S3_ENDPOINT }} >> $GITHUB_ENV
         echo BACKUP_S3_KEY_ID=${{ env.DEVOPS_FORGEJO_ELYSIUM_ORG_S3_KEY_ID }} >> $GITHUB_ENV
         echo BACKUP_S3_KEY=${{ env.DEVOPS_FORGEJO_ELYSIUM_ORG_S3_KEY }} >> $GITHUB_ENV
+        if [ -z "${{ inputs.s3-backup-path }}" ]; then
+          echo BACKUP_S3_MIRROR_TARGET=${{ inputs.s3-backup-path }} >> $GITHUB_ENV
+        else
+          echo BACKUP_S3_MIRROR_TARGET=backups/forgejo-repositories/${{ forgejo.repository }} >> $GITHUB_ENV
+        fi
     # Backup Repository
     - name: S3 Backup
       uses: https://github.com/peter-evans/s3-backup@v1
@@ -40,7 +45,7 @@ runs:
         STORAGE_SERVICE_URL: ${{ env.BACKUP_S3_ENDPOINT }}
         ACCESS_KEY_ID: ${{ env.BACKUP_S3_KEY_ID }}
         SECRET_ACCESS_KEY: ${{ env.BACKUP_S3_KEY }}
-        MIRROR_TARGET: ${{ inputs.s3-backup-path }}
+        MIRROR_TARGET: ${{ env.BACKUP_S3_MIRROR_TARGET }}
         MIRROR_SOURCE: ${{ forgejo.workspace }}/repo
       with:
         args: --overwrite --remove