diff --git a/app/ModelSerializers/ChatTeams/ChatTeamInvitationSerializer.php b/app/ModelSerializers/ChatTeams/ChatTeamInvitationSerializer.php
index 39fc4099..d25dc536 100644
--- a/app/ModelSerializers/ChatTeams/ChatTeamInvitationSerializer.php
+++ b/app/ModelSerializers/ChatTeams/ChatTeamInvitationSerializer.php
@@ -52,7 +52,7 @@ final class ChatTeamInvitationSerializer extends SilverStripeSerializer
                         if(isset($values['inviter_id']))
                         {
                             unset($values['inviter_id']);
-                            $values['inviter'] =  SerializerRegistry::getInstance()->getSerializer($invitation->getInviter())->serialize();
+                            $values['inviter'] =  SerializerRegistry::getInstance()->getSerializer($invitation->getInviter())->serialize('groups');
                         }
                     }
                     break;
@@ -60,7 +60,7 @@ final class ChatTeamInvitationSerializer extends SilverStripeSerializer
                         if(isset($values['invitee_id']))
                         {
                             unset($values['invitee_id']);
-                            $values['invitee'] =  SerializerRegistry::getInstance()->getSerializer($invitation->getInvitee())->serialize();
+                            $values['invitee'] =  SerializerRegistry::getInstance()->getSerializer($invitation->getInvitee())->serialize('groups');
                         }
                     }
                     break;
@@ -68,7 +68,7 @@ final class ChatTeamInvitationSerializer extends SilverStripeSerializer
                         if(isset($values['team_id']))
                         {
                             unset($values['team_id']);
-                            $values['team'] =  SerializerRegistry::getInstance()->getSerializer($invitation->getTeam())->serialize($expand = 'owner,members,member');
+                            $values['team'] =  SerializerRegistry::getInstance()->getSerializer($invitation->getTeam())->serialize($expand = 'owner,members,member, groups');
                         }
                     }
                     break;
diff --git a/app/ModelSerializers/ChatTeams/ChatTeamSerializer.php b/app/ModelSerializers/ChatTeams/ChatTeamSerializer.php
index cf9dbc98..7d9d55c2 100644
--- a/app/ModelSerializers/ChatTeams/ChatTeamSerializer.php
+++ b/app/ModelSerializers/ChatTeams/ChatTeamSerializer.php
@@ -77,7 +77,7 @@ final class ChatTeamSerializer extends SilverStripeSerializer
             // add pending invitations
             $invitations = [];
             foreach($team->getInvitations() as $invitation){
-                $invitations[] = SerializerRegistry::getInstance()->getSerializer($invitation)->serialize('inviter,invitee');
+                $invitations[] = SerializerRegistry::getInstance()->getSerializer($invitation)->serialize('inviter,invitee,');
             }
             $values['invitations'] = $invitations;
         }
diff --git a/tests/OAuth2ChatTeamApiTest.php b/tests/OAuth2ChatTeamApiTest.php
index 314d5098..d0063938 100644
--- a/tests/OAuth2ChatTeamApiTest.php
+++ b/tests/OAuth2ChatTeamApiTest.php
@@ -94,7 +94,7 @@ final class OAuth2ChatTeamApiTest extends ProtectedApiTest
     }
 
     public function testGetMyTeams(){
-        $params = ['expand' => 'owner, member'];
+        $params = ['expand' => 'owner, member, groups'];
 
         $headers = [
             "HTTP_Authorization" => " Bearer " . $this->access_token,