diff --git a/.gitea/workflows/docker-build.yml b/.gitea/workflows/docker-build.yml
index 2dd96d9..5d6c537 100644
--- a/.gitea/workflows/docker-build.yml
+++ b/.gitea/workflows/docker-build.yml
@@ -17,13 +17,19 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Extract registry hostname
+        id: registry
+        run: |
+          REGISTRY_HOST=$(echo "${{ gitea.server_url }}" | sed 's|https\?://||')
+          echo "host=$REGISTRY_HOST" >> $GITHUB_OUTPUT
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
       - name: Log in to Gitea Container Registry
         uses: docker/login-action@v3
         with:
-          registry: ${{ gitea.server_url }}
+          registry: ${{ steps.registry.outputs.host }}
           username: ${{ gitea.actor }}
           password: ${{ secrets.REGISTRY_PASSWORD }}
 
@@ -31,7 +37,7 @@ jobs:
         id: meta
         uses: docker/metadata-action@v5
         with:
-          images: ${{ gitea.server_url }}/${{ gitea.repository }}
+          images: ${{ steps.registry.outputs.host }}/${{ gitea.repository }}
           tags: |
             type=ref,event=branch
             type=ref,event=pr