diff --git a/internal/router/api/v1/account/fetch.go b/internal/router/api/v1/account/fetch.go
index 5fbb23d..6f7d20b 100644
--- a/internal/router/api/v1/account/fetch.go
+++ b/internal/router/api/v1/account/fetch.go
@@ -21,6 +21,11 @@ func Fetch(ctx *context.Context) {
 		return
 	}
 
+	if ctx.Account.Username == "" {
+		ctx.Error(400, "InvalidToken")
+		return
+	}
+
 	// Create information
 	information := &v1.Account{
 		ID:       ctx.Account.ID,