diff --git a/lib/net/pool.js b/lib/net/pool.js
index cb0beb2e..0b122895 100644
--- a/lib/net/pool.js
+++ b/lib/net/pool.js
@@ -1241,6 +1241,16 @@ Pool.prototype._handleAlert = function _handleAlert(alert, peer) {
     }
   }
 
+  // Keep alert disabled on main.
+  if (this.network.type === 'main') {
+    // https://github.com/bitcoin/bitcoin/pull/7692#issuecomment-197967429
+    this.logger.warning('The Japanese government sent an alert packet.');
+    this.logger.warning('Here is their IP: %s.', peer.hostname);
+    this.logger.info(alert);
+    peer.setMisbehavior(100);
+    return;
+  }
+
   this.logger.warning('Received alert from peer (%s).', peer.hostname);
   this.logger.warning(alert);