diff --git a/schema/index.yaml b/schema/index.yaml
index 1543981..2dcb917 100644
--- a/schema/index.yaml
+++ b/schema/index.yaml
@@ -81,6 +81,9 @@ $defs:
     required:
       - name
     properties:
+      id:
+        type: string
+        pattern: "^[a-z0-9-]+$"
       name:
         type: string
       caption:
diff --git a/src/people/_images/mykola.png b/src/people/_images/mykola-siusko.png
similarity index 100%
rename from src/people/_images/mykola.png
rename to src/people/_images/mykola-siusko.png
diff --git a/utils/engine.js b/utils/engine.js
index 5f43fef..1d5432a 100644
--- a/utils/engine.js
+++ b/utils/engine.js
@@ -55,7 +55,10 @@ export class Engine {
         arr.push(obj);
       }
       if (ext === "yaml" && fn !== "index") {
-        const item = await readYamlFile(join(dir, dirEntry.name));
+        const item = Object.assign(
+          { id: fn },
+          await readYamlFile(join(dir, dirEntry.name)),
+        );
         if (opts.loader === "person") {
           // load image
           const img = images.find((i) => i.id === fn);