diff --git a/codex/slots/builder/builder.nim b/codex/slots/builder/builder.nim
index 8a4abe40..2e758249 100644
--- a/codex/slots/builder/builder.nim
+++ b/codex/slots/builder/builder.nim
@@ -368,7 +368,6 @@ proc new*[T, H](
     numBlocksTotal      = numSlotBlocksTotal * manifest.numSlots          # number of blocks per slot
 
     emptyBlock          = newSeq[byte](manifest.blockSize.int)
-    # emptyDigestTree     = ? (waitFor T.digestTree(emptyBlock, cellSize.int))
 
     strategy = ? strategy.init(
       0,