diff --git a/src/drone.rs b/src/drone.rs
index be1d3ea3ae..ce5a69cb6f 100644
--- a/src/drone.rs
+++ b/src/drone.rs
@@ -262,7 +262,16 @@ mod tests {
     fn tmp_ledger_path(name: &str) -> String {
         let keypair = KeyPair::new();
 
-        format!("farf/{}-{}", name, keypair.pubkey())
+        let id = {
+            let ids: Vec<_> = keypair
+                .pubkey()
+                .iter()
+                .map(|id| format!("{}", id))
+                .collect();
+            ids.join("")
+        };
+
+        format!("farf/{}-{}", name, id)
     }
 
     #[test]
diff --git a/src/fullnode.rs b/src/fullnode.rs
index e046cb3c87..fe45f68147 100644
--- a/src/fullnode.rs
+++ b/src/fullnode.rs
@@ -384,7 +384,16 @@ mod tests {
     fn tmp_ledger_path(name: &str) -> String {
         let keypair = KeyPair::new();
 
-        format!("farf/{}-{}", name, keypair.pubkey())
+        let id = {
+            let ids: Vec<_> = keypair
+                .pubkey()
+                .iter()
+                .map(|id| format!("{}", id))
+                .collect();
+            ids.join("")
+        };
+
+        format!("farf/{}-{}", name, id)
     }
 
     #[test]
diff --git a/src/ledger.rs b/src/ledger.rs
index abd63a182c..10ad25d120 100644
--- a/src/ledger.rs
+++ b/src/ledger.rs
@@ -39,6 +39,10 @@ fn entry_at(file: &mut File, at: u64) -> io::Result<Entry> {
     deserialize_from(file.take(len)).map_err(err_bincode_to_io)
 }
 
+//fn next_offset(file: &mut File) -> io::Result<u64> {
+//    deserialize_from(file.take(SIZEOF_U64)).map_err(err_bincode_to_io)
+//}
+
 fn next_entry(file: &mut File) -> io::Result<Entry> {
     let len = deserialize_from(file.take(SIZEOF_USIZE)).map_err(err_bincode_to_io)?;
     deserialize_from(file.take(len)).map_err(err_bincode_to_io)
@@ -437,6 +441,8 @@ mod tests {
         assert!(entries0.verify(&id));
     }
 
+    fn tmp_ledger_path() -> String {}
+
     #[test]
     fn test_ledger_reader_writer() {
         let ledger_path = tmp_ledger_path("test_ledger_reader_writer");
diff --git a/src/thin_client.rs b/src/thin_client.rs
index d5bee03b75..df2bf47493 100644
--- a/src/thin_client.rs
+++ b/src/thin_client.rs
@@ -297,7 +297,16 @@ mod tests {
     fn tmp_ledger_path(name: &str) -> String {
         let keypair = KeyPair::new();
 
-        format!("farf/{}-{}", name, keypair.pubkey())
+        let id = {
+            let ids: Vec<_> = keypair
+                .pubkey()
+                .iter()
+                .map(|id| format!("{}", id))
+                .collect();
+            ids.join("")
+        };
+
+        format!("farf/{}-{}", name, id)
     }
 
     #[test]
diff --git a/src/tvu.rs b/src/tvu.rs
index a2cb8869ef..a3e96d631f 100644
--- a/src/tvu.rs
+++ b/src/tvu.rs
@@ -177,7 +177,16 @@ pub mod tests {
     fn tmp_ledger_path(name: &str) -> String {
         let keypair = KeyPair::new();
 
-        format!("farf/{}-{}", name, keypair.pubkey())
+        let id = {
+            let ids: Vec<_> = keypair
+                .pubkey()
+                .iter()
+                .map(|id| format!("{}", id))
+                .collect();
+            ids.join("")
+        };
+
+        format!("farf/{}-{}", name, id)
     }
 
     /// Test that message sent from leader to target1 and replicated to target2