diff --git a/.gitea/workflows/docker-publish.yml b/.gitea/workflows/docker-publish.yml
index 7b63997..35dab0c 100644
--- a/.gitea/workflows/docker-publish.yml
+++ b/.gitea/workflows/docker-publish.yml
@@ -57,6 +57,8 @@ jobs:
             type=semver,pattern={{version}},value=${{ inputs.tag }}
             type=semver,pattern={{major}}.{{minor}},value=${{ inputs.tag }}
             type=semver,pattern={{major}},value=${{ inputs.tag }}
+          labels: |
+            org.opencontainers.image.source=${{ gitea.server_url }}/${{ gitea.repository }}
 
       # QEMU enables emulation of arm64 on the amd64 runner.
       - name: Set up QEMU