diff --git a/src/pow.cpp b/src/pow.cpp
index 1602ddf8f..7795619a6 100644
--- a/src/pow.cpp
+++ b/src/pow.cpp
@@ -170,7 +170,7 @@ bool CheckProofOfWork(int32_t height,uint8_t *pubkey33,uint256 hash, unsigned in
             for (i=0; i<66; i++)
                 printf("%d ",komodo_minerid(height-i,pubkey33));
             printf(" minerids from ht.%d\n",height);
-            if ( height < 90000 || (height > 110000 && KOMODO_REWIND == 0) )
+            if ( height < 90000 || (height > 180000 && KOMODO_REWIND == 0) )
                 return error("CheckProofOfWork(): hash doesn't match nBits");
         }
     }