diff --git a/lib/runner.js b/lib/runner.js
index 22e7bb91d6..6851ab281b 100644
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -989,6 +989,7 @@ Runner.prototype.run = function(fn, opts) {
   fn = fn || function() {};
 
   function start() {
+    self._addEventListener(process, 'uncaughtException', self.uncaught);
     debug('run(): starting');
     // If there is an `only` filter
     if (rootSuite.hasOnly()) {
@@ -1027,11 +1028,9 @@ Runner.prototype.run = function(fn, opts) {
     debug(constants.EVENT_RUN_END);
     debug('run(): emitted %s', constants.EVENT_RUN_END);
     fn(self.failures);
+    self._removeEventListener(process, 'uncaughtException', self.uncaught);
   });
 
-  self._removeEventListener(process, 'uncaughtException', self.uncaught);
-  self._addEventListener(process, 'uncaughtException', self.uncaught);
-
   if (this._delay) {
     // for reporters, I guess.
     // might be nice to debounce some dots while we wait.