diff --git a/.gitea/workflows/deploy.yaml b/.gitea/workflows/deploy.yaml
index fd111e6..21dc246 100644
--- a/.gitea/workflows/deploy.yaml
+++ b/.gitea/workflows/deploy.yaml
@@ -74,13 +74,16 @@ jobs:
       - name: Configure docker auth for Artifact Registry
         run: gcloud auth configure-docker us-central1-docker.pkg.dev --quiet
 
-      - name: Build elc if not already present
+      - name: Build elc fresh on the runner
         run: |
           set -euo pipefail
+          # The committed dist/platform/elc may be from a different architecture
+          # (e.g. Will's macOS arm64 dev box). Always rebuild on the runner so
+          # the binary matches linux/amd64.
           cd "$EL_HOME"
-          if [ ! -x dist/platform/elc ]; then
-            ./build.sh
-          fi
+          rm -f dist/platform/elc
+          ./build.sh
+          file dist/platform/elc
           ls -la dist/platform/elc
 
       - name: Compute image tag