diff --git a/db/update11.2.sql b/db/update11.2.sql
new file mode 100644
index 0000000000..7939b8cfd6
--- /dev/null
+++ b/db/update11.2.sql
@@ -0,0 +1 @@
+update `zt_build` set `deleted`='1' where `project`='0' and `id` in (select `build` from `zt_release` where `deleted`='1');
diff --git a/module/release/control.php b/module/release/control.php
index b944bf7f6c..ed06532073 100644
--- a/module/release/control.php
+++ b/module/release/control.php
@@ -191,6 +191,10 @@ class release extends control
         {
             $this->release->delete(TABLE_RELEASE, $releaseID);
 
+            $release = $this->dao->select('*')->from(TABLE_RELEASE)->where('id')->eq((int)$releaseID)->fetch();
+            $build   = $this->dao->select('*')->from(TABLE_BUILD)->where('id')->eq((int)$release->build)->fetch();
+            if(empty($build->project)) $this->loadModel('build')->delete(TABLE_BUILD, $build->id);
+
             /* if ajax request, send result. */
             if($this->server->ajax)
             {