diff --git a/app/models/team.rb b/app/models/team.rb
index d635679f7..cb8fd7955 100644
--- a/app/models/team.rb
+++ b/app/models/team.rb
@@ -55,7 +55,9 @@ class Team < ActiveRecord::Base
   def search_users(query = nil)
     a_query = "%#{query}%"
     users.where.not(confirmed_at: nil)
-         .where('full_name LIKE ? OR email LIKE ?', a_query, a_query)
+         .where('lower(full_name) LIKE ? OR lower(email) LIKE ?',
+                a_query.downcase,
+                a_query.downcase)
   end
 
   # Imports samples into db