diff --git a/matterclient/matterclient.go b/matterclient/matterclient.go
index c38d14c8..f2ae46b0 100644
--- a/matterclient/matterclient.go
+++ b/matterclient/matterclient.go
@@ -9,7 +9,6 @@ import (
 	"net/http"
 	"net/http/cookiejar"
 	"net/url"
-	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -831,14 +830,6 @@ func (m *MMClient) sendWSRequest(action string, data map[string]interface{}) err
 	return nil
 }
 
-func (m *MMClient) mmVersion() float64 {
-	v, _ := strconv.ParseFloat(string(m.ServerVersion[0:2])+"0"+string(m.ServerVersion[2]), 64)
-	if string(m.ServerVersion[4]) == "." {
-		v, _ = strconv.ParseFloat(m.ServerVersion[0:4], 64)
-	}
-	return v
-}
-
 func supportedVersion(version string) bool {
 	if strings.HasPrefix(version, "3.8.0") ||
 		strings.HasPrefix(version, "3.9.0") ||