diff --git a/server/api/helpers/projects/delete-one.js b/server/api/helpers/projects/delete-one.js
index 39c832df..76a453c4 100644
--- a/server/api/helpers/projects/delete-one.js
+++ b/server/api/helpers/projects/delete-one.js
@@ -10,6 +10,12 @@ module.exports = {
   },
 
   async fn(inputs) {
+    const boardIds = await sails.helpers.projects.getBoardIds(inputs.record.id);
+
+    await BoardMembership.destroy({
+      boardId: boardIds,
+    }).fetch();
+
     const projectManagers = await ProjectManager.destroy({
       projectId: inputs.record.id,
     }).fetch();
@@ -19,14 +25,14 @@ module.exports = {
     if (project) {
       const managerUserIds = sails.helpers.utils.mapRecords(projectManagers, 'userId');
 
-      const boardIds = await sails.helpers.projects.getBoardIds(project.id);
-      const boardRooms = boardIds.map((boardId) => `board:${boardId}`);
-
       const memberUserIds = await sails.helpers.boards.getMemberUserIds(boardIds);
       const userIds = _.union(managerUserIds, memberUserIds);
 
       userIds.forEach((userId) => {
-        sails.sockets.removeRoomMembersFromRooms(`user:${userId}`, boardRooms);
+        sails.sockets.removeRoomMembersFromRooms(
+          `user:${userId}`,
+          boardIds.map((boardId) => `board:${boardId}`),
+        );
 
         sails.sockets.broadcast(
           `user:${userId}`,