diff --git a/index.js b/index.js
index fc3f414..72d0a38 100644
--- a/index.js
+++ b/index.js
@@ -127,27 +127,29 @@ function forwardMessageToEvo(sender, message, ts) {
     
     
     // kirim ping 1 detik setelah pesan agar segera diproses
-    setTimeout(function() {
-        
-        var pingOpts = {
-            url: config.globals.evo_url,
-            qs: {
-                msg: 'S.' + config.globals.ping_pin,
-                msisdn: config.globals.ping_ym_id + config.globals.msisdn_suffix,
-                smsc: config.globals.smsc,
-                ts: strftime('%F %T')
-            }
-        };
-        
-        logger.info('Sending ping message', {opts: pingOpts});
-        
-        request(pingOpts, function(err, response, body) {
-            if (err) {
-                logger.warn('Error send PING to evo: ' + err);
-                return;
-            }
-        });
-    }, 1000);
+    if (config.globals.send_ping_to_evo == '1') {
+        setTimeout(function() {
+            
+            var pingOpts = {
+                url: config.globals.evo_url,
+                qs: {
+                    msg: 'S.' + config.globals.ping_pin,
+                    msisdn: config.globals.ping_ym_id + config.globals.msisdn_suffix,
+                    smsc: config.globals.smsc,
+                    ts: strftime('%F %T')
+                }
+            };
+            
+            logger.info('Sending ping message', {opts: pingOpts});
+            
+            request(pingOpts, function(err, response, body) {
+                if (err) {
+                    logger.warn('Error send PING to evo: ' + err);
+                    return;
+                }
+            });
+        }, 1000);
+    }
 }
 
 function createHttpServer() {