diff --git a/_official-blog-tutorial/app/singleton.server.ts b/_official-blog-tutorial/app/singleton.server.ts
index 4eae6307..6d933284 100644
--- a/_official-blog-tutorial/app/singleton.server.ts
+++ b/_official-blog-tutorial/app/singleton.server.ts
@@ -4,7 +4,7 @@
 
 export const singleton = <Value>(
   name: string,
-  valueFactory: () => Value
+  valueFactory: () => Value,
 ): Value => {
   const g = global as any;
   g.__singletons ??= {};
diff --git a/_official-jokes/app/utils/singleton.server.ts b/_official-jokes/app/utils/singleton.server.ts
index 4eae6307..6d933284 100644
--- a/_official-jokes/app/utils/singleton.server.ts
+++ b/_official-jokes/app/utils/singleton.server.ts
@@ -4,7 +4,7 @@
 
 export const singleton = <Value>(
   name: string,
-  valueFactory: () => Value
+  valueFactory: () => Value,
 ): Value => {
   const g = global as any;
   g.__singletons ??= {};