diff --git a/src/core.h b/src/core.h
index 9aaedfeaf..ed3007b14 100644
--- a/src/core.h
+++ b/src/core.h
@@ -473,6 +473,7 @@ public:
         block.nTime          = nTime;
         block.nBits          = nBits;
         block.nNonce         = nNonce;
+        block.auxpow         = auxpow;
         return block;
     }
 
diff --git a/src/main.h b/src/main.h
index a26e261e8..cd512846e 100644
--- a/src/main.h
+++ b/src/main.h
@@ -962,6 +962,7 @@ public:
         block.nTime           = nTime;
         block.nBits           = nBits;
         block.nNonce          = nNonce;
+        // AuxPoW is not part of the hash
         return block.GetHash();
     }