diff --git a/conservancy_beancount/data.py b/conservancy_beancount/data.py
index a62209d..c9b6a52 100644
--- a/conservancy_beancount/data.py
+++ b/conservancy_beancount/data.py
@@ -41,8 +41,7 @@ class Account(str):
     def is_real_asset(self) -> bool:
         return bool(
             self.is_under('Assets:')
-            and not self.is_under('Assets:PrepaidExpenses')
-            and not self.is_under('Assets:PrepaidVacation')
+            and not self.is_under('Assets:PrepaidExpenses', 'Assets:PrepaidVacation')
         )
 
     def is_under(self, *acct_seq: str) -> Optional[str]: