diff --git a/src/blocktree.rs b/src/blocktree.rs
index 528da00b16..1f88837554 100644
--- a/src/blocktree.rs
+++ b/src/blocktree.rs
@@ -413,7 +413,7 @@ impl Blocktree {
         Ok((blocktree, signal_sender, signal_receiver))
     }
 
-    pub fn open_config(ledger_path: &str, config: BlocktreeConfig) -> Result<Self> {
+    pub fn open_config(ledger_path: &str, config: &BlocktreeConfig) -> Result<Self> {
         let mut blocktree = Self::open(ledger_path)?;
         blocktree.ticks_per_slot = config.ticks_per_slot;
         Ok(blocktree)
@@ -421,7 +421,7 @@ impl Blocktree {
 
     pub fn open_with_config_signal(
         ledger_path: &str,
-        config: BlocktreeConfig,
+        config: &BlocktreeConfig,
     ) -> Result<(Self, SyncSender<bool>, Receiver<bool>)> {
         let mut blocktree = Self::open(ledger_path)?;
         let (signal_sender, signal_receiver) = sync_channel(1);
@@ -1872,7 +1872,7 @@ mod tests {
         let ledger_path = get_tmp_ledger_path("test_new_blobs_signal");
         let ticks_per_slot = 10;
         let config = BlocktreeConfig::new(ticks_per_slot);
-        let (ledger, _, recvr) = Blocktree::open_with_config_signal(&ledger_path, config).unwrap();
+        let (ledger, _, recvr) = Blocktree::open_with_config_signal(&ledger_path, &config).unwrap();
         let ledger = Arc::new(ledger);
 
         // Create ticks for slot 0
@@ -1979,7 +1979,7 @@ mod tests {
         {
             let ticks_per_slot = 2;
             let config = BlocktreeConfig::new(ticks_per_slot);
-            let blocktree = Blocktree::open_config(&blocktree_path, config).unwrap();
+            let blocktree = Blocktree::open_config(&blocktree_path, &config).unwrap();
 
             let entries = create_ticks(6, Hash::default());
             let mut blobs = entries.to_blobs();
diff --git a/src/fullnode.rs b/src/fullnode.rs
index 6e7391ebe3..24099dfa48 100644
--- a/src/fullnode.rs
+++ b/src/fullnode.rs
@@ -131,7 +131,7 @@ impl Fullnode {
             ledger_signal_receiver,
         ) = new_bank_from_ledger(
             ledger_path,
-            config.ledger_config(),
+            &config.ledger_config(),
             &config.leader_scheduler_config,
         );
 
@@ -469,7 +469,7 @@ impl Fullnode {
 
 pub fn new_bank_from_ledger(
     ledger_path: &str,
-    ledger_config: BlocktreeConfig,
+    ledger_config: &BlocktreeConfig,
     leader_scheduler_config: &LeaderSchedulerConfig,
 ) -> (Bank, u64, Hash, Blocktree, SyncSender<bool>, Receiver<bool>) {
     let (blocktree, ledger_signal_sender, ledger_signal_receiver) =
@@ -832,7 +832,7 @@ mod tests {
         validator_exit();
         let (bank, entry_height, _, _, _, _) = new_bank_from_ledger(
             &validator_ledger_path,
-            BlocktreeConfig::default(),
+            &BlocktreeConfig::default(),
             &LeaderSchedulerConfig::default(),
         );
 
diff --git a/src/repair_service.rs b/src/repair_service.rs
index c6ced41cfe..f01dc4b0f7 100644
--- a/src/repair_service.rs
+++ b/src/repair_service.rs
@@ -219,7 +219,7 @@ mod test {
         {
             let num_ticks_per_slot = 1;
             let blocktree_config = BlocktreeConfig::new(num_ticks_per_slot);
-            let blocktree = Blocktree::open_config(&blocktree_path, blocktree_config).unwrap();
+            let blocktree = Blocktree::open_config(&blocktree_path, &blocktree_config).unwrap();
 
             let mut blobs = create_ticks(1, Hash::default()).to_blobs();
             blobs[0].set_index(0);
@@ -268,7 +268,7 @@ mod test {
         {
             let num_ticks_per_slot = 10;
             let blocktree_config = BlocktreeConfig::new(num_ticks_per_slot);
-            let blocktree = Blocktree::open_config(&blocktree_path, blocktree_config).unwrap();
+            let blocktree = Blocktree::open_config(&blocktree_path, &blocktree_config).unwrap();
 
             let mut blobs = make_tiny_test_entries(1).to_blobs();
             blobs[0].set_index(1);
@@ -294,7 +294,7 @@ mod test {
         {
             let num_ticks_per_slot = 10;
             let blocktree_config = BlocktreeConfig::new(num_ticks_per_slot);
-            let blocktree = Blocktree::open_config(&blocktree_path, blocktree_config).unwrap();
+            let blocktree = Blocktree::open_config(&blocktree_path, &blocktree_config).unwrap();
 
             let num_entries_per_slot = 10;
             let num_slots = 2;
diff --git a/src/replay_stage.rs b/src/replay_stage.rs
index 6aedf35dc1..468e0929a9 100644
--- a/src/replay_stage.rs
+++ b/src/replay_stage.rs
@@ -445,7 +445,7 @@ mod test {
             // Set up the bank
             let blocktree_config = BlocktreeConfig::new(ticks_per_slot);
             let (bank, _entry_height, last_entry_id, blocktree, l_sender, l_receiver) =
-                new_bank_from_ledger(&my_ledger_path, blocktree_config, &leader_scheduler_config);
+                new_bank_from_ledger(&my_ledger_path, &blocktree_config, &leader_scheduler_config);
 
             // Set up the replay stage
             let (rotation_sender, rotation_receiver) = channel();
@@ -554,7 +554,7 @@ mod test {
             let (bank, entry_height, last_entry_id, blocktree, l_sender, l_receiver) =
                 new_bank_from_ledger(
                     &my_ledger_path,
-                    BlocktreeConfig::default(),
+                    &BlocktreeConfig::default(),
                     &LeaderSchedulerConfig::default(),
                 );
 
@@ -675,7 +675,7 @@ mod test {
         {
             let blocktree_config = BlocktreeConfig::new(ticks_per_slot);
             let (bank, _entry_height, last_entry_id, blocktree, l_sender, l_receiver) =
-                new_bank_from_ledger(&my_ledger_path, blocktree_config, &leader_scheduler_config);
+                new_bank_from_ledger(&my_ledger_path, &blocktree_config, &leader_scheduler_config);
 
             let meta = blocktree
                 .meta(0)
diff --git a/tests/multinode.rs b/tests/multinode.rs
index a37cdb2dfe..dda62e9ec9 100644
--- a/tests/multinode.rs
+++ b/tests/multinode.rs
@@ -985,7 +985,7 @@ fn test_leader_to_validator_transition() {
     info!("Check the ledger to make sure it's the right height...");
     let bank = new_bank_from_ledger(
         &leader_ledger_path,
-        BlocktreeConfig::default(),
+        &BlocktreeConfig::default(),
         &LeaderSchedulerConfig::default(),
     )
     .0;
@@ -1778,7 +1778,7 @@ fn test_fullnode_rotate(ticks_per_slot: u64, slots_per_epoch: u64) {
 
         let blocktree = solana::blocktree::Blocktree::open_config(
             &leader_ledger_path,
-            fullnode_config.ledger_config(),
+            &fullnode_config.ledger_config(),
         )
         .unwrap();
         blocktree