diff --git a/server/dist/src/models/comments-model.js b/server/dist/src/models/comments-model.js
index 6d9c1aee..e370d9d6 100644
--- a/server/dist/src/models/comments-model.js
+++ b/server/dist/src/models/comments-model.js
@@ -7,7 +7,7 @@ class CommentsModel extends model_1.Model {
         super("comments");
         this.defaultSchema.add(new schema_item_factory_1.text("author", "")).setRequired(true);
         this.defaultSchema.add(new schema_item_factory_1.foreignKey("post", "", "posts", false)).setRequired(true);
-        this.defaultSchema.add(new schema_item_factory_1.foreignKey("parent", "", "comments"));
+        this.defaultSchema.add(new schema_item_factory_1.foreignKey("parent", "", "comments", true));
         this.defaultSchema.add(new schema_item_factory_1.html("content", "", schema_html_1.SchemaHtml.defaultTags.concat("img"), undefined, true));
         this.defaultSchema.add(new schema_item_factory_1.bool("public", true));
         this.defaultSchema.add(new schema_item_factory_1.date("createdOn")).setIndexable(true);
diff --git a/server/src/models/comments-model.ts b/server/src/models/comments-model.ts
index 1377498e..6880b7a3 100644
--- a/server/src/models/comments-model.ts
+++ b/server/src/models/comments-model.ts
@@ -11,7 +11,7 @@ export class CommentsModel extends Model
 
         this.defaultSchema.add(new text("author", "")).setRequired(true)
         this.defaultSchema.add(new foreignKey("post", "", "posts", false)).setRequired(true)
-        this.defaultSchema.add(new foreignKey("parent", "", "comments"))
+        this.defaultSchema.add(new foreignKey("parent", "", "comments", true))
         this.defaultSchema.add(new html( "content", "", SchemaHtml.defaultTags.concat("img"), undefined, true));
         this.defaultSchema.add(new bool("public", true));
         this.defaultSchema.add(new date("createdOn")).setIndexable(true);