diff --git a/server/api/controllers/board-memberships/create.js b/server/api/controllers/board-memberships/create.js
index fa4ec899..7c70fa5b 100755
--- a/server/api/controllers/board-memberships/create.js
+++ b/server/api/controllers/board-memberships/create.js
@@ -29,6 +29,7 @@ module.exports = {
     },
     canComment: {
       type: 'boolean',
+      allowNull: true,
     },
   },
 
diff --git a/server/api/controllers/board-memberships/update.js b/server/api/controllers/board-memberships/update.js
index ffbf2d5c..695b2b8a 100644
--- a/server/api/controllers/board-memberships/update.js
+++ b/server/api/controllers/board-memberships/update.js
@@ -17,6 +17,7 @@ module.exports = {
     },
     canComment: {
       type: 'boolean',
+      allowNull: true,
     },
   },