diff --git a/auth.ts b/auth.ts
index 0b714d6..5c7c1dd 100644
--- a/auth.ts
+++ b/auth.ts
@@ -1,25 +1,18 @@
-import NextAuth, { type DefaultSession } from 'next-auth'
+import NextAuth from 'next-auth'
 import GitHub from 'next-auth/providers/github'
 
-declare module 'next-auth' {
-  interface Session {
-    user: {
-      /** The user's id. */
-      id: string
-    } & DefaultSession['user']
-  }
-}
-
 export const {
   handlers: { GET, POST },
   auth,
   CSRF_experimental
+  // @ts-ignore
 } = NextAuth({
   // @ts-ignore
   providers: [GitHub],
   callbacks: {
+    // @ts-ignore
     jwt: async ({ token, profile }) => {
-      if (profile) {
+      if (profile?.id) {
         token.id = profile.id
         token.image = profile.picture
       }
diff --git a/next-auth.d.ts b/next-auth.d.ts
new file mode 100644
index 0000000..918e14d
--- /dev/null
+++ b/next-auth.d.ts
@@ -0,0 +1,13 @@
+import NextAuth, { DefaultSession } from 'next-auth'
+
+declare module 'next-auth' {
+  /**
+   * Returned by `useSession`, `getSession` and received as a prop on the `SessionProvider` React Context
+   */
+  interface Session {
+    user: {
+      /** The user's postal address. */
+      id: string
+    } & DefaultSession['user']
+  }
+}
diff --git a/tsconfig.json b/tsconfig.json
index 9be1cf1..9f91b9b 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -26,6 +26,7 @@
   },
   "include": [
     "next-env.d.ts",
+    "next-auth.d.ts",
     "**/*.ts",
     "**/*.tsx",
     ".next/types/**/*.ts"