diff --git a/sigmastate/src/main/scala/org/ergoplatform/ErgoBoxCandidate.scala b/sigmastate/src/main/scala/org/ergoplatform/ErgoBoxCandidate.scala
index 003bfbe977..9fa6cafaf0 100644
--- a/sigmastate/src/main/scala/org/ergoplatform/ErgoBoxCandidate.scala
+++ b/sigmastate/src/main/scala/org/ergoplatform/ErgoBoxCandidate.scala
@@ -100,14 +100,14 @@ class ErgoBoxCandidate(val value: Long,
     s"tokens: (${additionalTokens.map(t => ErgoAlgos.encode(t._1) + ":" + t._2).toArray.mkString(", ")}), " +
     s"$additionalRegisters, creationHeight: $creationHeight)"
 
-  /** Additional tokens stored in the box, merged into a Map */
+  /** Additional tokens stored in the box, merged into a Map.
+    * This method is not used in ErgoTree and serialization, not part of consensus.
+    */
   lazy val tokens: Map[ModifierId, Long] = {
     val merged = new mutable.HashMap[ModifierId, Long]
-    additionalTokens.foreach {
-      case (id, amount) => {
-        val mId = bytesToId(id)
-        merged.put(mId, java7.compat.Math.addExact(merged.getOrElse(mId, 0L), amount))
-      }
+    additionalTokens.foreach { case (id, amount) =>
+      val mId = bytesToId(id)
+      merged.put(mId, java7.compat.Math.addExact(merged.getOrElse(mId, 0L), amount))
     }
     merged.toMap
   }