diff --git a/src/main.h b/src/main.h
index 0f1ad0d03..4035de136 100644
--- a/src/main.h
+++ b/src/main.h
@@ -183,7 +183,7 @@ void UnregisterNodeSignals(CNodeSignals& nodeSignals);
  * @param[out]  dbp     If pblock is stored to disk (or already there), this will be set to its location.
  * @return True if state.IsValid()
  */
-bool ProcessNewBlock(int32_t from_miner,int32_t height,CValidationState &state, CNode* pfrom, CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp);
+bool ProcessNewBlock(bool from_miner,int32_t height,CValidationState &state, CNode* pfrom, CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp);
 /** Check whether enough disk space is available for an incoming block */
 bool CheckDiskSpace(uint64_t nAdditionalBytes = 0);
 /** Open a block file (blk?????.dat) */