diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index 4750d9e6..d9313dd7 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -164,7 +164,7 @@ main.genesisBlock =
 main.pow = {
   /**
    * Default target.
-   * @const {Buffer}
+   * @const {BN}
    */
 
   limit: new BN(