diff --git a/services/api/collections/createCollection.ts b/services/api/collections/createCollection.ts
index 33a778d0..0c7a928d 100644
--- a/services/api/collections/createCollection.ts
+++ b/services/api/collections/createCollection.ts
@@ -6,7 +6,7 @@ export type Request = {
     title: string;
     tags: string[];
     content: {
-        comment: string;
+        comment: string | null;
         label: string | null;
         order: number;
         slug: string;
diff --git a/services/api/collections/updateCollection.ts b/services/api/collections/updateCollection.ts
index 02228cc4..11a0c3e6 100644
--- a/services/api/collections/updateCollection.ts
+++ b/services/api/collections/updateCollection.ts
@@ -6,7 +6,7 @@ type Request = {
     title: string;
     tags: string[];
     content: {
-        comment: string;
+        comment: string | null;
         label: string | null;
         order: number;
         slug: string;
diff --git a/services/providers/collection-provider.tsx b/services/providers/collection-provider.tsx
index 943036ef..a939b156 100644
--- a/services/providers/collection-provider.tsx
+++ b/services/providers/collection-provider.tsx
@@ -81,7 +81,7 @@ export default function CollectionProvider({ children }: Props) {
             .map((group, i) => {
                 return group.items.map((item, k) => {
                     return {
-                        comment: '',
+                        comment: null,
                         label: group.title || null,
                         order: 0,
                         slug: item.content.slug,