diff --git a/web/dbml/schema.dbml b/web/dbml/schema.dbml
index 493168e..f5a959f 100644
--- a/web/dbml/schema.dbml
+++ b/web/dbml/schema.dbml
@@ -6,8 +6,8 @@ Table Borrow {
   id Int [pk, increment]
   userLogin String [not null]
   joyconsTaken Int [not null]
-  borrowOpeningId Int [unique, not null]
-  returnOpeningId Int [unique, not null]
+  borrowOpeningId String [unique, not null]
+  returnOpeningId String [unique, not null]
   createdAt DateTime [default: `now()`, not null]
   user User [not null]
   borrowOpening Opening [not null]
@@ -15,7 +15,7 @@ Table Borrow {
 }
 
 Table Opening {
-  id Int [pk, increment]
+  id String [pk]
   date DateTime
   code String
   codeGeneratedAt DateTime
diff --git a/web/src/utils.ts b/web/src/utils.ts
index 341d789..746205d 100644
--- a/web/src/utils.ts
+++ b/web/src/utils.ts
@@ -143,7 +143,7 @@ export async function getWaitingOpeningWithValidCode(userLogin: string) {
   return formatOpening(opening);
 }
 
-export async function generateNewCode(borrowId: number) {
+export async function generateNewCode(borrowId: string) {
   const code = await generateCode();
   await prisma.opening.update({
     where: { id: borrowId },
diff --git a/web/src/webRouter.ts b/web/src/webRouter.ts
index b3cff50..e2c5fa5 100644
--- a/web/src/webRouter.ts
+++ b/web/src/webRouter.ts
@@ -145,7 +145,7 @@ webRouter.get("/forceOpen", async (request: Request, response: Response) => {
   const opening = formatOpening(
     await prisma.opening.findUnique({
       where: {
-        id: Number.parseInt(request.query.id as string),
+        id: request.query.id as string,
         date: null,
         borrow: null,
       },
@@ -155,9 +155,7 @@ webRouter.get("/forceOpen", async (request: Request, response: Response) => {
   if (!opening) {
     return response.redirect("/");
   }
-  const newCode = await generateNewCode(
-    Number.parseInt(request.query.id as string)
-  );
+  const newCode = await generateNewCode(request.query.id as string);
   response.render(path.join(__dirname, "../www/getCode.html"), {
     code: newCode,
     joycons: opening.borrow.joyconsTaken,