diff --git a/lib/networkmonitor.js b/lib/networkmonitor.js
index bfc25a32..9e87523c 100644
--- a/lib/networkmonitor.js
+++ b/lib/networkmonitor.js
@@ -86,7 +86,9 @@ NetworkMonitor.prototype.stop = function(reason) {
 
 NetworkMonitor.prototype.abort = function(reason) {
   this.peer.disconnect();
-  throw reason;
+  if (reason) {
+    throw reason;
+  }
 };
 
 module.exports = NetworkMonitor;
diff --git a/test/networkmonitor.js b/test/networkmonitor.js
index 732f8310..40c9d560 100644
--- a/test/networkmonitor.js
+++ b/test/networkmonitor.js
@@ -38,6 +38,9 @@ describe('NetworkMonitor', function() {
         block: mockBlock
       });
     };
+    peerMock.disconnect = function() {
+      
+    };
   });
 
   it('instantiates correctly from constructor', function() {
@@ -62,7 +65,10 @@ describe('NetworkMonitor', function() {
 
   it('broadcasts errors in underlying peer', function(cb) {
     var nm = new NetworkMonitor(busMock, peerMock);
-    nm.on('error', cb);
+    nm.on('error', function() {
+      console.log('under');
+      cb();
+    });
     nm.start();
     peerMock.emit('error');
   });