diff --git a/libsawtooth/src/journal/commit_store.rs b/libsawtooth/src/journal/commit_store.rs
index f7fae1b6e..303efd92f 100644
--- a/libsawtooth/src/journal/commit_store.rs
+++ b/libsawtooth/src/journal/commit_store.rs
@@ -324,7 +324,7 @@ impl CommitStore {
                     .batches()
                     .iter()
                     .find(|batch| {
-                        !batch
+                        batch
                             .transactions()
                             .iter()
                             .any(|txn| txn.header_signature() == transaction_id)
diff --git a/libsawtooth/src/transact/database/lmdb.rs b/libsawtooth/src/transact/database/lmdb.rs
index 49a347d63..6bcfffb9a 100644
--- a/libsawtooth/src/transact/database/lmdb.rs
+++ b/libsawtooth/src/transact/database/lmdb.rs
@@ -533,9 +533,9 @@ mod tests {
         })
     }
 
-    fn run_test<T>(test: T) -> ()
+    fn run_test<T>(test: T)
     where
-        T: FnOnce(&str) -> () + panic::UnwindSafe,
+        T: FnOnce(&str) + panic::UnwindSafe,
     {
         let dbpath = temp_db_path();