diff --git a/src/main.cpp b/src/main.cpp
index e02ec515b..1d7a6f8b1 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3634,10 +3634,11 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         return true;
 
     // Write undo information to disk
-    fprintf(stderr,"isNull %d vs isvalid %d nStatus %x\n",pindex->GetUndoPos().IsNull(),pindex->IsValid(BLOCK_VALID_SCRIPTS),(uint32_t)pindex->nStatus);
+    fprintf(stderr,"nFile.%d isNull %d vs isvalid %d nStatus %x\n",(int32_t)pindex->nFile,pindex->GetUndoPos().IsNull(),pindex->IsValid(BLOCK_VALID_SCRIPTS),(uint32_t)pindex->nStatus);
     if (pindex->GetUndoPos().IsNull() || !pindex->IsValid(BLOCK_VALID_SCRIPTS))
     {
-        if (pindex->GetUndoPos().IsNull()) {
+        if (pindex->GetUndoPos().IsNull())
+        {
             CDiskBlockPos pos;
             if (!FindUndoPos(state, pindex->nFile, pos, ::GetSerializeSize(blockundo, SER_DISK, CLIENT_VERSION) + 40))
                 return error("ConnectBlock(): FindUndoPos failed");
@@ -3649,7 +3650,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
             pindex->nUndoPos = pos.nPos;
             pindex->nStatus |= BLOCK_HAVE_UNDO;
         }
-
+        
         // Now that all consensus rules have been validated, set nCachedBranchId.
         // Move this if BLOCK_VALID_CONSENSUS is ever altered.
         static_assert(BLOCK_VALID_CONSENSUS == BLOCK_VALID_SCRIPTS,
@@ -3660,7 +3661,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         } else if (pindex->pprev) {
             pindex->nCachedBranchId = pindex->pprev->nCachedBranchId;
         }
-
+        
         pindex->RaiseValidity(BLOCK_VALID_SCRIPTS);
         setDirtyBlockIndex.insert(pindex);
     }