diff --git a/lib/runner.js b/lib/runner.js
index <HASH>..<HASH> 100644
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -334,6 +334,8 @@ Runner.prototype.run = function() {
       pluginPostTestPromises.push(plugins.postTest(false, testInfo));
     });
 
+    log.debug('Running with spec files ' + self.config_.specs);
+
     return require(frameworkPath).run(self, self.config_.specs).
         then(function(testResults) {
           return q.all(pluginPostTestPromises).then(function(postTestResultList) {
chore(debugging): add info about current spec file list when troubleshooting

Running with the `--troubleshoot` flag will now list the spec files
for each runner instance.