diff --git a/apps/files/controller/apicontroller.php b/apps/files/controller/apicontroller.php
index a8bea27e4b..1bb07010a2 100644
--- a/apps/files/controller/apicontroller.php
+++ b/apps/files/controller/apicontroller.php
@@ -76,11 +76,11 @@ class ApiController extends Controller {
 			try {
 				$this->tagService->updateFileTags($path, $tags);
 			} catch (\OCP\Files\NotFoundException $e) {
-				return new DataResponse($e->getMessage(), Http::STATUS_NOT_FOUND);
+				return new DataResponse(['message' => $e->getMessage()], Http::STATUS_NOT_FOUND);
 			} catch (\OCP\Files\StorageNotAvailableException $e) {
-				return new DataResponse($e->getMessage(), Http::STATUS_SERVICE_UNAVAILABLE);
+				return new DataResponse(['message' => $e->getMessage()], Http::STATUS_SERVICE_UNAVAILABLE);
 			} catch (\Exception $e) {
-				return new DataResponse($e->getMessage(), Http::STATUS_NOT_FOUND);
+				return new DataResponse(['message' => $e->getMessage()], Http::STATUS_NOT_FOUND);
 			}
 			$result['tags'] = $tags;
 		}
diff --git a/apps/files/js/tagsplugin.js b/apps/files/js/tagsplugin.js
index b00aacfba5..b81f1ec575 100644
--- a/apps/files/js/tagsplugin.js
+++ b/apps/files/js/tagsplugin.js
@@ -105,12 +105,12 @@
 					} else {
 						tags.push(OC.TAG_FAVORITE);
 					}
+					toggleStar($actionEl, !isFavorite);
 
 					self.applyFileTags(
 						dir + '/' + fileName,
 						tags
 					).then(function(result) {
-						toggleStar($actionEl, !isFavorite);
 						// response from server should contain updated tags
 						var newTags = result.tags;
 						if (_.isUndefined(newTags)) {
@@ -171,8 +171,13 @@
 				}),
 				dataType: 'json',
 				type: 'POST'
-			}).fail(function() {
-				OC.Notification.showTemporary(t('files', 'An error occurred while trying to update the tags'));
+			}).fail(function(response) {
+				var message = '';
+				// show message if it is available
+				if(response.responseJSON && response.responseJSON.message) {
+					message = ': ' + response.responseJSON.message;
+				}
+				OC.Notification.showTemporary(t('files', 'An error occurred while trying to update the tags') + message);
 			});
 		}
 	};