diff --git a/app/models/team_user.rb b/app/models/team_user.rb
index 9f90bc15b..fce0e67a4 100644
--- a/app/models/team_user.rb
+++ b/app/models/team_user.rb
@@ -29,7 +29,7 @@ class TeamUser < ApplicationRecord
   before_destroy :remove_project_member
 
   def self.build(organization_id, user_id, team_id)
-    self.create!(organization_id: organization_id, user_id: user_id, team_id: team_id)
+    self.find_or_create_by!(organization_id: organization_id, user_id: user_id, team_id: team_id)
   end
 
   def remove_project_member