diff --git a/src/main.cpp b/src/main.cpp
index 26f913863..fe0621d16 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4136,7 +4136,7 @@ bool ProcessNewBlock(bool from_miner,int32_t height,CValidationState &state, CNo
             {
                 if ( (pindex= miSelf->second) == 0 )
                 {
-                    fprint(stderr,"Block header is already known, but without pindex\n",hash.ToString().c_str());
+                    fprint(stderr,"Block header %s is already known, but without pindex\n",hash.ToString().c_str());
                     AddToBlockIndex(*pblock);
                 }
             }