diff --git a/server/src/schema/resolvers/user.ts b/server/src/schema/resolvers/user.ts
index 0fb6e5b..c67d250 100644
--- a/server/src/schema/resolvers/user.ts
+++ b/server/src/schema/resolvers/user.ts
@@ -74,6 +74,20 @@ export const userResolvers = {
 
       // lagrer aldri passordet bare hashen
       const passwordHash = await bcrypt.hash(args.password, 10);
+      // gjør gjestebruker om til ordentlig bruker og alt gjesten har lagret blir med
+      if (context.userId) {
+        const current = await prisma.user.findUnique({
+          where: { id: context.userId },
+        });
+        if (current?.isGuest) {
+          const upgraded = await prisma.user.update({
+            where: { id: current.id },
+            data: { username, name: username, passwordHash, isGuest: false },
+          });
+          setLoginCookie(context.res, upgraded.id);
+          return upgraded;
+        }
+      }
       const user = await prisma.user.create({
         data: { username, name: username, passwordHash },
       });