diff --git a/src/main.cpp b/src/main.cpp
index 1d21289f2..1c50f4c1c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3748,12 +3748,12 @@ bool CheckBlockHeader(int32_t height,CBlockIndex *pindex, const CBlockHeader& bl
         return state.Invalid(error("CheckBlockHeader(): block timestamp needs to always increase"),REJECT_INVALID, "time-too-new");
     }
     // Check block version
-    //if (block.nVersion < MIN_BLOCK_VERSION)
-    //    return state.DoS(100, error("CheckBlockHeader(): block version too low"),REJECT_INVALID, "version-too-low");
+    if (height > 0 && block.nVersion < MIN_BLOCK_VERSION)
+        return state.DoS(100, error("CheckBlockHeader(): block version too low"),REJECT_INVALID, "version-too-low");
     
     // Check Equihash solution is valid
-    if ( fCheckPOW && !CheckEquihashSolution(&blockhdr, Params()) )
-        return state.DoS(100, error("CheckBlockHeader(): Equihash solution invalid"),REJECT_INVALID, "invalid-solution");
+    /*if ( fCheckPOW && !CheckEquihashSolution(&blockhdr, Params()) )
+        return state.DoS(100, error("CheckBlockHeader(): Equihash solution invalid"),REJECT_INVALID, "invalid-solution");*/
     
     // Check proof of work matches claimed amount
     /*komodo_index2pubkey33(pubkey33,pindex,height);
@@ -3811,6 +3811,8 @@ bool CheckBlock(int32_t height,CBlockIndex *pindex,const CBlock& block, CValidat
         fprintf(stderr,"checkblockheader error PoW.%d\n",fCheckPOW);
         return false;
     }
+    if ( fCheckPOW && !CheckEquihashSolution(&blockhdr, Params()) )
+        return state.DoS(100, error("CheckBlockHeader(): Equihash solution invalid"),REJECT_INVALID, "invalid-solution");
     komodo_block2pubkey33(pubkey33,(CBlock *)&block);
     if ( fCheckPOW && !CheckProofOfWork(height,pubkey33,block.GetHash(), block.nBits, Params().GetConsensus()) )
     {