diff --git a/test/server_side/controllers/groups.test.js b/test/server_side/controllers/groups.test.js
index 9e970c4afc..6a75c75c78 100644
--- a/test/server_side/controllers/groups.test.js
+++ b/test/server_side/controllers/groups.test.js
@@ -194,7 +194,7 @@ describe('Groups Controller', function() {
 
         expect(group.leave).to.not.be.called;
         expect(res.json).to.be.calledOnce;
-        expect(res.json).to.be.calledWith(403, 'You cannot leave party during an active quest. Please leave the quest first');
+        expect(res.json).to.be.calledWith(403, 'You cannot leave party during an active quest. Please leave the quest first.');
       });
 
       it('prevents quest leader from leaving a party if they have started a quest', function() {
diff --git a/website/src/controllers/api-v2/groups.js b/website/src/controllers/api-v2/groups.js
index 0fc969c3af..cd01d1b27e 100644
--- a/website/src/controllers/api-v2/groups.js
+++ b/website/src/controllers/api-v2/groups.js
@@ -524,7 +524,7 @@ api.leave = function(req, res, next) {
     }
 
     if (group.quest && group.quest.active && group.quest.members && group.quest.members[user._id]) {
-      return res.json(403, 'You cannot leave party during an active quest. Please leave the quest first');
+      return res.json(403, 'You cannot leave party during an active quest. Please leave the quest first.');
     }
   }