diff --git a/connectivity/torProvider.go b/connectivity/torProvider.go
index 7a5b9ef..ce3ab4a 100644
--- a/connectivity/torProvider.go
+++ b/connectivity/torProvider.go
@@ -154,7 +154,8 @@ func createFromExisting(controlport *control.Conn, datadir string) Mixnet {
 func checkCmdlineTorVersion(torCmd string) bool {
 	cmd := exec.Command(torCmd, "--version")
 	out, err := cmd.CombinedOutput()
-	re := regexp.MustCompile("[0-9].[0-9].[0-9].[0.9]")
+	log.Println("cmdline tor version: " + string(out))
+	re := regexp.MustCompile("[0-1]\\.[0-9]\\.[0-9]\\.[0-9]")
 	sysTorVersion := re.Find(out)
 	log.Println("cmdline tor version: " + string(sysTorVersion))
 	return err == nil && minTorVersionReqs(string(sysTorVersion))
@@ -164,6 +165,7 @@ func checkCmdlineTorVersion(torCmd string) bool {
 // min requirment 0.3.5.x
 func minTorVersionReqs(torversion string) bool {
 	torversions := strings.Split(torversion, ".") //eg: 0.3.4.8 or 0.3.5.1-alpha
+	log.Printf("torversions: %v", torversions)
 	tva, _ := strconv.Atoi(torversions[0])
 	tvb, _ := strconv.Atoi(torversions[1])
 	tvc, _ := strconv.Atoi(torversions[2])