diff --git a/Gemfile b/Gemfile
index b44e3b5..8e3f2a4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -69,6 +69,9 @@ gem 'http_accept_language'
 # External logins with OmniAuth
 gem 'omniauth'
 
+# Colab integration for Omniauth
+gem 'omniauth-remote-user'
+
 group :test do
   # Easier test writing
   gem "shoulda-matchers", '~> 2.8.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index fcef42c..55b6582 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -208,6 +208,8 @@ GEM
     omniauth (1.2.2)
       hashie (>= 1.2, < 4)
       rack (~> 1.0)
+    omniauth-remote-user (0.0.5)
+      omniauth (~> 1.0)
     orm_adapter (0.5.0)
     pg (0.18.1)
     poltergeist (1.6.0)
@@ -357,6 +359,7 @@ DEPENDENCIES
   konacha (~> 3.3.0)
   mocha
   omniauth
+  omniauth-remote-user
   pg (~> 0.18.1)
   poltergeist (~> 1.6.0)
   rails (= 4.2.1)
diff --git a/app/models/user.rb b/app/models/user.rb
index 3c662c9..51e6e90 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -3,7 +3,7 @@ class User < ActiveRecord::Base
   # :token_authenticatable, :confirmable,
   # :lockable, :timeoutable and :omniauthable
   devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable,
-         :omniauthable, omniauth_providers: []
+         :omniauthable, omniauth_providers: [:RemoteUser]
 
   validates :name, presence: true
   validates :email, presence: true, uniqueness: true
--
libgit2 0.21.2