diff --git a/src/main.cpp b/src/main.cpp
index 66f9ddf33..884fcdf36 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3439,7 +3439,8 @@ bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBloc
                 return false;
             }
         }
-        fprintf(stderr,"return true pindex.%p ppindex.%p\n",pindex,*ppindex);
+        if ( pindex != *ppindex )
+            fprintf(stderr,"return true ht.%d pindex.%p ppindex.%p\n",pindex->nHeight,pindex,*ppindex);
         return true;
     }