diff --git a/ldap_login.gemspec b/ldap_login.gemspec
index 1aea34a..46b2c2b 100644
--- a/ldap_login.gemspec
+++ b/ldap_login.gemspec
@@ -18,6 +18,6 @@ Gem::Specification.new do |s|
   s.test_files = Dir["test/**/*"]
 
   s.add_dependency "rails", "~> 4.1.16"
-
+  s.add_dependency "net-ldap"
   s.add_development_dependency "sqlite3"
 end