diff --git a/.gitea/workflows/linux_arm64_docker-release.yaml b/.gitea/workflows/linux_arm64_docker-release.yaml
index fbfc46c..1352fe7 100644
--- a/.gitea/workflows/linux_arm64_docker-release.yaml
+++ b/.gitea/workflows/linux_arm64_docker-release.yaml
@@ -13,6 +13,10 @@ jobs:
       - name: Clone the repository
         uses: actions/checkout@v4
 
+      - name: Lowercase Repo Name
+        run: |
+          echo "REPO_LC=${GITHUB_REPOSITORY,,}" >> ${GITHUB_ENV}
+
       - name: Login to own image registry
         uses: docker/login-action@v3
         with:
@@ -30,9 +34,8 @@ jobs:
 
       - name: Build Linux ARM64 Docker Image
         run: |
-          # Wir bauen das Image exakt so, wie dein Repo heißt (z.B. penry/couchlog)
           docker build \
-            -t gitea.penry.de/${{ github.repository }}:latest \
+            -t gitea.penry.de/${{ env.REPO_LC }}:latest \
             --label "org.opencontainers.image.source=https://gitea.penry.de/${{ github.repository }}" \
             .