diff --git a/app/models/authentication_provider.rb b/app/models/authentication_provider.rb
index 3607fa75aaa..10b293562ea 100644
--- a/app/models/authentication_provider.rb
+++ b/app/models/authentication_provider.rb
@@ -20,6 +20,7 @@
 
 require 'net-ldap'
 require 'net_ldap_extensions'
+NetLdapExtensions.apply
 
 class AuthenticationProvider < ActiveRecord::Base
   include Workflow
diff --git a/lib/net_ldap_extensions.rb b/lib/net_ldap_extensions.rb
index db577f07df6..72dcdd306d6 100644
--- a/lib/net_ldap_extensions.rb
+++ b/lib/net_ldap_extensions.rb
@@ -17,56 +17,60 @@
 # You should have received a copy of the GNU Affero General Public License along
 # with this program. If not, see <http://www.gnu.org/licenses/>.
 
-Net::LDAP::ResultStrings.merge!({
-                                  0 => "Success Hi",
-                                  1 => "Operation Error",
-                                  2 => "Protocol Error",
-                                  3 => "Time Limit Exceeded",
-                                  4 => "Size Limit Exceeded",
-                                  5 => "Compare False",
-                                  6 => "Compare True",
-                                  7 => "Auth Method Not Supported",
-                                  8 => "Strong Auth Required",
-                                  9 => "Ldap Partial Results",
-                                  10 => "Referral (ldap V3)",
-                                  11 => "Admin Limit Exceeded (ldap V3)",
-                                  12 => "Unavailable Critical Extension (ldap V3)",
-                                  13 => "Confidentiality Required (ldap V3)",
-                                  14 => "Sasl Bind In Progress",
-                                  16 => "No Such Attribute",
-                                  17 => "Undefined Attribute Type",
-                                  18 => "Inappropriate Matching",
-                                  19 => "Constraint Violation",
-                                  20 => "Attribute Or Value Exists",
-                                  21 => "Invalid Attribute Syntax",
-                                  32 => "No Such Object",
-                                  33 => "Alias Problem",
-                                  34 => "Invalid Dn Syntax",
-                                  35 => "Is Leaf",
-                                  36 => "Alias Dereferencing Problem",
-                                  48 => "Inappropriate Authentication",
-                                  49 => "Invalid Credentials",
-                                  50 => "Insufficient Access Rights",
-                                  51 => "Busy",
-                                  52 => "Unavailable",
-                                  53 => "Unwilling To Perform",
-                                  54 => "Loop Defect",
-                                  64 => "Naming Violation",
-                                  65 => "Object Class Violation",
-                                  66 => "Not Allowed On Nonleaf",
-                                  67 => "Not Allowed On Rdn",
-                                  68 => "Entry Already Exists",
-                                  69 => "Object Class Mods Prohibited",
-                                  71 => "Affects Multiple Dsas (ldap V3)",
-                                  80 => "Other",
-                                  81 => "Server Down",
-                                  85 => "Ldap Timeout",
-                                  89 => "Param Error",
-                                  91 => "Connect Error",
-                                  92 => "Ldap Not Supported",
-                                  93 => "Control Not Found",
-                                  94 => "No Results Returned",
-                                  95 => "More Results To Return",
-                                  96 => "Client Loop",
-                                  97 => "Referral Limit Exceeded",
-                                })
+module NetLdapExtensions
+  def self.apply
+    Net::LDAP::ResultStrings.merge!({
+                                      0 => "Success Hi",
+                                      1 => "Operation Error",
+                                      2 => "Protocol Error",
+                                      3 => "Time Limit Exceeded",
+                                      4 => "Size Limit Exceeded",
+                                      5 => "Compare False",
+                                      6 => "Compare True",
+                                      7 => "Auth Method Not Supported",
+                                      8 => "Strong Auth Required",
+                                      9 => "Ldap Partial Results",
+                                      10 => "Referral (ldap V3)",
+                                      11 => "Admin Limit Exceeded (ldap V3)",
+                                      12 => "Unavailable Critical Extension (ldap V3)",
+                                      13 => "Confidentiality Required (ldap V3)",
+                                      14 => "Sasl Bind In Progress",
+                                      16 => "No Such Attribute",
+                                      17 => "Undefined Attribute Type",
+                                      18 => "Inappropriate Matching",
+                                      19 => "Constraint Violation",
+                                      20 => "Attribute Or Value Exists",
+                                      21 => "Invalid Attribute Syntax",
+                                      32 => "No Such Object",
+                                      33 => "Alias Problem",
+                                      34 => "Invalid Dn Syntax",
+                                      35 => "Is Leaf",
+                                      36 => "Alias Dereferencing Problem",
+                                      48 => "Inappropriate Authentication",
+                                      49 => "Invalid Credentials",
+                                      50 => "Insufficient Access Rights",
+                                      51 => "Busy",
+                                      52 => "Unavailable",
+                                      53 => "Unwilling To Perform",
+                                      54 => "Loop Defect",
+                                      64 => "Naming Violation",
+                                      65 => "Object Class Violation",
+                                      66 => "Not Allowed On Nonleaf",
+                                      67 => "Not Allowed On Rdn",
+                                      68 => "Entry Already Exists",
+                                      69 => "Object Class Mods Prohibited",
+                                      71 => "Affects Multiple Dsas (ldap V3)",
+                                      80 => "Other",
+                                      81 => "Server Down",
+                                      85 => "Ldap Timeout",
+                                      89 => "Param Error",
+                                      91 => "Connect Error",
+                                      92 => "Ldap Not Supported",
+                                      93 => "Control Not Found",
+                                      94 => "No Results Returned",
+                                      95 => "More Results To Return",
+                                      96 => "Client Loop",
+                                      97 => "Referral Limit Exceeded",
+                                    })
+  end
+end