diff --git a/src/stratum_server.cpp b/src/stratum_server.cpp
index 249f88c..73ccbea 100644
--- a/src/stratum_server.cpp
+++ b/src/stratum_server.cpp
@@ -529,8 +529,7 @@ void StratumServer::reset_share_counters()
 {
 	WriteLock lock(m_hashrateDataLock);
 
-	m_cumulativeHashes = 0;
-	m_cumulativeHashesAtLastShare = 0;
+	m_cumulativeHashesAtLastShare = m_cumulativeHashes;
 	m_cumulativeFoundSharesDiff = 0.0;
 	m_totalFoundShares = 0;
 	m_totalFailedShares = 0;