diff --git a/auth.ts b/auth.ts
index 94ee955..ee385b3 100644
--- a/auth.ts
+++ b/auth.ts
@@ -72,8 +72,9 @@ export const {
 
 			if (!exisingUser) return token
 
-			// ts-ignore
-			token.isOauth = Boolean(exisingUser?.isOauth)
+			token.isOauth = exisingUser.hasOwnProperty('isOauth')
+				? Boolean(exisingUser.isOauth)
+				: false
 			token.provider = exisingUser.provider
 			token.role = exisingUser.role
 			token.profileId = exisingUser.profileId