diff --git a/src/main.cpp b/src/main.cpp
index 83762eaf7..8e836ffa0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4276,7 +4276,7 @@ static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMo
                              ASSETCHAINS_SYMBOL,pindexFork->phashBlock->GetHex(), pindexFork->GetHeight()) + "\n\n" +
             _("Please help, human!");
             LogPrintf("*** %s\nif you launch with -maxreorg=%d it might be able to resolve this automatically", msg,reorgLength+10);
-            fprintf(stderr,"*** %s\nif you launch with -maxreorg=%d it might be able to resolve this automatically", msg,reorgLength+10);
+            fprintf(stderr,"*** %s\nif you launch with -maxreorg=%d it might be able to resolve this automatically", msg.c_str(),reorgLength+10);
             uiInterface.ThreadSafeMessageBox(msg, "", CClientUIInterface::MSG_ERROR);
             StartShutdown();
             return false;