diff --git a/lib/Service/StackService.php b/lib/Service/StackService.php
index 5d993b8e3..da80bbda6 100644
--- a/lib/Service/StackService.php
+++ b/lib/Service/StackService.php
@@ -214,7 +214,7 @@ class StackService {
 	 * @throws BadRequestException
 	 */
 	public function create($title, $boardId, $order) {
-		if ($title === false || $title === null) {
+		if ($title === false || $title === null || mb_strlen($title) === 0) {
 			throw new BadRequestException('title must be provided');
 		}
 
@@ -291,7 +291,7 @@ class StackService {
 			throw new BadRequestException('stack id must be a number');
 		}
 
-		if ($title === false || $title === null) {
+		if ($title === false || $title === null || mb_strlen($title) === 0) {
 			throw new BadRequestException('title must be provided');
 		}