diff --git a/.gitea/workflows/02-gitea-mcp.yml b/.gitea/workflows/02-gitea-mcp.yml
index 1ca7854..bf2e05a 100644
--- a/.gitea/workflows/02-gitea-mcp.yml
+++ b/.gitea/workflows/02-gitea-mcp.yml
@@ -35,6 +35,7 @@ jobs:
 
           docker build \
             -f ${{ env.IMAGE }}.Dockerfile \
+            --build-arg TARGETARCH=${{ matrix.arch }} \
             -t ${{ env.IMAGE_BASE }}:${{ env.IMAGE }}-${{ matrix.arch }}-latest \
             --label "build_date=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" \
             --label "commit_sha=${{ github.sha }}" \