diff --git a/runtime/src/rent_collector.rs b/runtime/src/rent_collector.rs
index 88bc57fa87..445954cd5a 100644
--- a/runtime/src/rent_collector.rs
+++ b/runtime/src/rent_collector.rs
@@ -203,6 +203,10 @@ mod tests {
         solana_sdk::{account::Account, sysvar},
     };
 
+    fn default_rent_collector_clone_with_epoch(epoch: Epoch) -> RentCollector {
+        RentCollector::default().clone_with_epoch(epoch)
+    }
+
     #[test]
     fn test_collect_from_account_created_and_existing() {
         let old_lamports = 1000;
@@ -219,7 +223,7 @@ mod tests {
             (account.clone(), account)
         };
 
-        let rent_collector = RentCollector::default().clone_with_epoch(new_epoch);
+        let rent_collector = default_rent_collector_clone_with_epoch(new_epoch);
 
         // collect rent on a newly-created account
         let collected = rent_collector
@@ -263,7 +267,7 @@ mod tests {
         assert_eq!(account.rent_epoch(), 0);
 
         // create a tested rent collector
-        let rent_collector = RentCollector::default().clone_with_epoch(epoch);
+        let rent_collector = default_rent_collector_clone_with_epoch(epoch);
 
         // first mark account as being collected while being rent-exempt
         let collected = rent_collector.collect_from_existing_account(&pubkey, &mut account, None);
@@ -291,7 +295,7 @@ mod tests {
         assert_eq!(account.rent_epoch(), 0);
 
         let epoch = 3;
-        let rent_collector = RentCollector::default().clone_with_epoch(epoch);
+        let rent_collector = default_rent_collector_clone_with_epoch(epoch);
 
         let collected = rent_collector.collect_from_existing_account(&pubkey, &mut account, None);
         assert_eq!(account.lamports(), 0);
@@ -311,7 +315,7 @@ mod tests {
             rent_epoch: account_rent_epoch,
             ..Account::default()
         });
-        let rent_collector = RentCollector::default().clone_with_epoch(account_rent_epoch + 2);
+        let rent_collector = default_rent_collector_clone_with_epoch(account_rent_epoch + 2);
 
         let collected =
             rent_collector.collect_from_existing_account(&Pubkey::new_unique(), &mut account, None);