diff --git a/loopback-blog/common/models/comment.js b/loopback-blog/common/models/comment.js
new file mode 100644
index 0000000..1aa19e4
--- /dev/null
+++ b/loopback-blog/common/models/comment.js
@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = function(Comment) {
+
+};
diff --git a/loopback-blog/common/models/comment.json b/loopback-blog/common/models/comment.json
new file mode 100644
index 0000000..824da1c
--- /dev/null
+++ b/loopback-blog/common/models/comment.json
@@ -0,0 +1,19 @@
+{
+  "name": "Comment",
+  "plural": "comments",
+  "base": "PersistedModel",
+  "idInjection": true,
+  "options": {
+    "validateUpsert": true
+  },
+  "properties": {
+    "body": {
+      "type": "string",
+      "required": true
+    }
+  },
+  "validations": [],
+  "relations": {},
+  "acls": [],
+  "methods": {}
+}
diff --git a/loopback-blog/server/model-config.json b/loopback-blog/server/model-config.json
index d415bce..7873d61 100644
--- a/loopback-blog/server/model-config.json
+++ b/loopback-blog/server/model-config.json
@@ -20,5 +20,9 @@
   "Post": {
     "dataSource": null,
     "public": true
+  },
+  "Comment": {
+    "dataSource": null,
+    "public": true
   }
 }