diff --git a/rpc/handler.go b/rpc/handler.go
index 035b557a47..1f1c9d0792 100644
--- a/rpc/handler.go
+++ b/rpc/handler.go
@@ -340,7 +340,7 @@ func (h *handler) handleCall(cp *callProc, msg *jsonrpcMessage) *jsonrpcMessage
 			successfulRequestGauge.Inc(1)
 		}
 		jsonrpcServingTimer.UpdateSince(start)
-		newJsonrpcServingTimer(msg.Version, msg.Method, answer.Error == nil).UpdateSince(start)
+		newJsonrpcServingTimer(msg.Method, answer.Error == nil).UpdateSince(start)
 	}
 	return answer
 }
diff --git a/rpc/metrics.go b/rpc/metrics.go
index c062dae5ea..5c4cbf1bae 100644
--- a/rpc/metrics.go
+++ b/rpc/metrics.go
@@ -29,11 +29,11 @@ var (
 	jsonrpcServingTimer    = metrics.NewRegisteredTimer("rpc/jsonrpc/duration/all", nil)
 )
 
-func newJsonrpcServingTimer(version string, method string, valid bool) metrics.Timer {
+func newJsonrpcServingTimer(method string, valid bool) metrics.Timer {
 	flag := "success"
 	if !valid {
 		flag = "failure"
 	}
-	m := fmt.Sprintf("rpc/jsonrpc/duration/%s/%s/%s", version, method, flag)
+	m := fmt.Sprintf("rpc/jsonrpc/duration/%s/%s", method, flag)
 	return metrics.GetOrRegisterTimer(m, nil)
 }