diff --git a/_example/example.js b/_example/example.js
index f049bbb3..7d1799df 100644
--- a/_example/example.js
+++ b/_example/example.js
@@ -4,15 +4,22 @@ require("telegram")
 var fakeESSID = random.String(16, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ');
 var fakeBSSID = random.Mac()
 
+function graph(who, where) {
+    // generates a .dot file with the graph for this mac
+    run('graph.to_dot ' + who);
+    // uses graphviz to make a png of it
+    run('!dot -Tpng bettergraph.dot > ' + where);
+}
+
 function onDeauthentication(event) {
     var data = event.data;
 
-    run('graph.to_dot ' + data.address1);
-    run('!dot -Tpng bettergraph.dot > /tmp/graph_deauth.png')
+    graph(data.address1, '/tmp/graph_deauth.png');
 
     var message = '🚨 Detected deauthentication frame:\n\n' +
-        'Time: ' + event.time + "\n" +
-        'GPS: lat=' + session.GPS.Latitude + " lon=" + session.GPS.Longitude + " updated_at=" + session.GPS.Updated.String() + "\n\n" +
+        // 'Time: ' + event.time + "\n" +
+        // 'GPS: lat=' + session.GPS.Latitude + " lon=" + session.GPS.Longitude + " updated_at=" +
+        //session.GPS.Updated.String() + "\n\n" +
         'RSSI: ' + data.rssi + "\n" +
         'Reason: ' + data.reason + "\n" +
         'Address1: ' + data.address1 + "\n" +
@@ -27,12 +34,12 @@ function onDeauthentication(event) {
 function onNewAP(event){
     var ap = event.data;
     if(ap.hostname == fakeESSID) {
-        run('graph.to_dot ' + ap.mac);
-        run('!dot -Tpng bettergraph.dot > /tmp/graph_ap.png')
+        graph(ap.mac, '/tmp/graph_ap.png');
 
         var message = '🚨 Detected possible rogue AP:\n\n' +
-            'Time: ' + event.time + "\n" +
-            'GPS: lat=' + session.GPS.Latitude + " lon=" + session.GPS.Longitude + " updated_at=" + session.GPS.Updated.String() + "\n\n" +
+            // 'Time: ' + event.time + "\n" +
+            // 'GPS: lat=' + session.GPS.Latitude + " lon=" + session.GPS.Longitude + " updated_at=" +
+            //session.GPS.Updated.String() + "\n\n" +
             'AP: ' + ap.mac + ' (' + ap.vendor + ')';
 
         // send to telegram bot
@@ -45,8 +52,7 @@ function onHandshake(event){
     var data = event.data;
     var what = 'handshake';
 
-    run('graph.to_dot ' + data.station);
-    run('!dot -Tpng bettergraph.dot > /tmp/graph_handshake.png')
+    graph(data.station, '/tmp/graph_handshake.png');
 
     if(data.pmkid != null) {
         what = "RSN PMKID";
@@ -57,8 +63,9 @@ function onHandshake(event){
     }
 
     var message = '💰 Captured ' + what + ':\n\n' +
-        'Time: ' + event.time + "\n" +
-        'GPS: lat=' + session.GPS.Latitude + " lon=" + session.GPS.Longitude + " updated_at=" + session.GPS.Updated.String() + "\n\n" +
+        //'Time: ' + event.time + "\n" +
+        //'GPS: lat=' + session.GPS.Latitude + " lon=" + session.GPS.Longitude + " updated_at=" +
+        //session.GPS.Updated.String() + "\n\n" +
         'Station: ' + data.station + "\n" +
         'AP: ' + data.ap;
 
diff --git a/_example/telegram.js b/_example/telegram.js
index 44db1ce9..6838333b 100644
--- a/_example/telegram.js
+++ b/_example/telegram.js
@@ -13,6 +13,6 @@ function sendMessage(message) {
 
 function sendPhoto(path) {
     var url = 'https://api.telegram.org/bot' + telegramToken + '/sendPhoto';
-    var cmd = 'curl -s -X POST "' + url + '" -F chat_id=' + telegramChatId + ' -F photo="@' + path + '"';
+    var cmd = 'curl -s -X POST "' + url + '" -F chat_id=' + telegramChatId + ' -F photo="@' + path + '" > /dev/null';
     run("!"+cmd);
 }
\ No newline at end of file
diff --git a/modules/graph/dot.go b/modules/graph/dot.go
index e80c8ddb..83c29e0b 100644
--- a/modules/graph/dot.go
+++ b/modules/graph/dot.go
@@ -7,6 +7,9 @@ import (
 )
 
 func (mod *Module) generateDotGraph(bssid string) error {
+	mod.wLock.Lock()
+	defer mod.wLock.Unlock()
+
 	start := time.Now()
 	if err := mod.updateSettings(); err != nil {
 		return err
diff --git a/modules/graph/json.go b/modules/graph/json.go
index f9562941..82521a0a 100644
--- a/modules/graph/json.go
+++ b/modules/graph/json.go
@@ -7,6 +7,9 @@ import (
 )
 
 func (mod *Module) generateJSONGraph(bssid string) error {
+	mod.wLock.Lock()
+	defer mod.wLock.Unlock()
+	
 	start := time.Now()
 	if err := mod.updateSettings(); err != nil {
 		return err
diff --git a/modules/graph/module.go b/modules/graph/module.go
index 117e9dd0..14c49acd 100644
--- a/modules/graph/module.go
+++ b/modules/graph/module.go
@@ -10,6 +10,7 @@ import (
 	"os"
 	"path/filepath"
 	"regexp"
+	"sync"
 	"time"
 )
 
@@ -46,6 +47,7 @@ type Module struct {
 	gw       *Node
 	iface    *Node
 	eventBus session.EventBus
+	wLock    sync.Mutex
 }
 
 func NewModule(s *session.Session) *Module {