diff --git a/storage/src/main/java/tech/pegasys/teku/storage/server/rocksdb/RocksDbInstance.java b/storage/src/main/java/tech/pegasys/teku/storage/server/rocksdb/RocksDbInstance.java
index b8bc2082840..f9a1c11675b 100644
--- a/storage/src/main/java/tech/pegasys/teku/storage/server/rocksdb/RocksDbInstance.java
+++ b/storage/src/main/java/tech/pegasys/teku/storage/server/rocksdb/RocksDbInstance.java
@@ -158,7 +158,9 @@ public <K, V> Stream<K> streamKeys(final KvStoreColumn<K, V> column) {
     return createKeyStream(
         column,
         iter -> {
-          if (iter.isValid()) iter.seekToFirst();
+          if (iter.isValid()) {
+            iter.seekToFirst();
+          }
         });
   }
 
@@ -169,7 +171,9 @@ public Stream<ColumnEntry<Bytes, Bytes>> streamRaw(final KvStoreColumn<?, ?> col
     return createStreamRaw(
             column,
             iter -> {
-              if (iter.isValid()) iter.seekToFirst();
+              if (iter.isValid()) {
+                iter.seekToFirst();
+              }
             },
             key -> true)
         .map(entry -> ColumnEntry.create(Bytes.wrap(entry.getKey()), Bytes.wrap(entry.getValue())));
@@ -182,7 +186,9 @@ public Stream<Bytes> streamKeysRaw(final KvStoreColumn<?, ?> column) {
     return createStreamKeyRaw(
             column,
             iter -> {
-              if (iter.isValid()) iter.seekToFirst();
+              if (iter.isValid()) {
+                iter.seekToFirst();
+              }
             },
             key -> true)
         .map(Bytes::wrap);
@@ -208,7 +214,9 @@ public <K extends Comparable<K>, V> Stream<ColumnEntry<K, V>> stream(
     return createStream(
         column,
         iter -> {
-          if (iter.isValid()) iter.seek(column.getKeySerializer().serialize(from));
+          if (iter.isValid()) {
+            iter.seek(column.getKeySerializer().serialize(from));
+          }
         },
         key -> key.compareTo(to) <= 0);
   }
@@ -221,7 +229,9 @@ public <K extends Comparable<K>, V> Stream<K> streamKeys(
     return createKeyStream(
         column,
         iter -> {
-          if (iter.isValid()) iter.seek(column.getKeySerializer().serialize(from));
+          if (iter.isValid()) {
+            iter.seek(column.getKeySerializer().serialize(from));
+          }
         },
         key -> key.compareTo(to) <= 0);
   }