diff --git a/Cargo.lock b/Cargo.lock
index 6676830bd0..a38d95457e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -355,7 +355,7 @@ dependencies = [
 
 [[package]]
 name = "silk"
-version = "0.3.2"
+version = "0.3.3"
 dependencies = [
  "bincode 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index f5d6b216df..58819fa2fa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "silk"
 description = "A silky smooth implementation of the Loom architecture"
-version = "0.3.2"
+version = "0.3.3"
 documentation = "https://docs.rs/silk"
 homepage = "http://loomprotocol.com/"
 repository = "https://github.com/loomprotocol/silk"
diff --git a/src/historian.rs b/src/historian.rs
index 83e5b7bae5..6b6e02e934 100644
--- a/src/historian.rs
+++ b/src/historian.rs
@@ -48,8 +48,10 @@ impl Historian {
                 if let Err(err) = logger.process_events(now, ms_per_tick) {
                     return err;
                 }
-                logger.last_id = hash(&logger.last_id);
-                logger.num_hashes += 1;
+                if ms_per_tick.is_some() {
+                    logger.last_id = hash(&logger.last_id);
+                    logger.num_hashes += 1;
+                }
             }
         })
     }
@@ -86,6 +88,10 @@ mod tests {
         let entry1 = hist.receiver.recv().unwrap();
         let entry2 = hist.receiver.recv().unwrap();
 
+        assert_eq!(entry0.num_hashes, 0);
+        assert_eq!(entry1.num_hashes, 0);
+        assert_eq!(entry2.num_hashes, 0);
+
         drop(hist.sender);
         assert_eq!(
             hist.thread_hdl.join().unwrap(),