diff --git a/src/main/webapp/js/controllers.js b/src/main/webapp/js/controllers.js
index 51dbe93e..6a83afd6 100644
--- a/src/main/webapp/js/controllers.js
+++ b/src/main/webapp/js/controllers.js
@@ -52,9 +52,11 @@ module.controller('SubscribeCtrl', ['$scope', '$location', 'FeedService', 'Categ
 						$scope.state = 'ok';
 						$scope.sub.title = data.title;
 						$scope.sub.url = data.url;
+						$scope.stacktrace = null;
 					}, function(data) {
 						$scope.state = 'failed';
 						$scope.sub.title = 'Loading failed. Invalid feed?';
+						$scope.stacktrace = data.data;
 					});
 				}
 			};
diff --git a/src/main/webapp/templates/feeds.subscribe.html b/src/main/webapp/templates/feeds.subscribe.html
index 6d2ced11..db306071 100644
--- a/src/main/webapp/templates/feeds.subscribe.html
+++ b/src/main/webapp/templates/feeds.subscribe.html
@@ -34,4 +34,6 @@
 			</div>
 		</div>
 	</form>
+	
+	<pre ng-if="state == 'failed'">{{stacktrace}}</pre>
 </div>
\ No newline at end of file