diff --git a/bookshop/mtx/sidecar/package.json b/bookshop/mtx/sidecar/package.json
new file mode 100644
index 00000000..87a29b5d
--- /dev/null
+++ b/bookshop/mtx/sidecar/package.json
@@ -0,0 +1,11 @@
+{
+  "name": "mtx-sidecar", "version": "0.0.0",
+  "dependencies": {
+    "@sap/cds-mtxs": "^1",
+    "@sap/cds": "^6",
+    "express": "^4"
+  },
+  "cds": {
+    "profile": "mtx-sidecar"
+  }
+}
diff --git a/bookshop/package.json b/bookshop/package.json
index 21b048d7..dc967f74 100644
--- a/bookshop/package.json
+++ b/bookshop/package.json
@@ -20,8 +20,9 @@
     "watch": "cds watch"
   },
   "cds": {
+    "profile": "with-mtx-sidecar",
     "requires": {
-      "db": "sql"
+      "db": { "kind": "sql" }
     }
   }
 }