diff --git a/.github/workflows/smoke-build.yaml b/.github/workflows/smoke-build.yaml
index f081dd4..29ec200 100644
--- a/.github/workflows/smoke-build.yaml
+++ b/.github/workflows/smoke-build.yaml
@@ -118,7 +118,7 @@ jobs:
           persist-credentials: false
           submodules: recursive
 
-      - name: Package, Publish, and Sign Helm Chart
+      - name: Package, Publish, and Sign Helm Chart (oci.stackable.tech)
         uses: ./publish-helm-chart
         with:
           chart-registry-uri: oci.stackable.tech
@@ -129,6 +129,17 @@ jobs:
           chart-version: ${{ matrix.versions }}
           app-version: ${{ matrix.versions }}
 
+      - name: Package, Publish, and Sign Helm Chart (quay.io)
+        uses: ./publish-helm-chart
+        with:
+          chart-registry-uri: quay.io
+          chart-registry-username: stackable+robot_sdp_charts_github_action_build
+          chart-registry-password: ${{ secrets.QUAY_ROBOT_SDP_CHARTS_GITHUB_ACTION_BUILD_SECRET }}
+          chart-repository: stackable/smoke
+          chart-directory: smoke/helm-chart
+          chart-version: ${{ matrix.versions }}
+          app-version: ${{ matrix.versions }}
+
   notify:
     name: Failure Notification
     needs:
diff --git a/publish-helm-chart/action.yaml b/publish-helm-chart/action.yaml
index 1831699..64cdf66 100644
--- a/publish-helm-chart/action.yaml
+++ b/publish-helm-chart/action.yaml
@@ -146,7 +146,16 @@ runs:
         # Capture the stdout output to extract the digest. It is sad that Helm doesn't provide
         # structured output, eg. in JSON. There is a 2-year old open issue about it:
         # https://github.com/helm/helm/issues/11735
+        # Helm outputs the digest on STDERR, for whatever ridiculous reason. Like, who makes these
+        # decisions?
+        set +e
         HELM_OUTPUT=$(helm push "$CHART_ARTIFACT" "oci://${CHART_REGISTRY_URI}/${CHART_REPOSITORY}" 2>&1)
+        if [ $? -ne 0 ]; then
+          echo "Helm push command failed"
+          echo "$HELM_OUTPUT"
+          exit 1
+        fi
+        set -e
 
         # Yuck
         CHART_DIGEST=$(echo "$HELM_OUTPUT" | awk '/^Digest: sha256:[0-9a-f]{64}$/ { print $2 }')