diff --git a/app/models/repository/bazaar.rb b/app/models/repository/bazaar.rb
index 7fa3cb1e..8178e6db 100644
--- a/app/models/repository/bazaar.rb
+++ b/app/models/repository/bazaar.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/bazaar_adapter'
+require_dependency 'redmine/scm/adapters/bazaar_adapter'
 
 class Repository::Bazaar < Repository
   attr_protected :root_url
diff --git a/app/models/repository/cvs.rb b/app/models/repository/cvs.rb
index 99b8ccfa..fa37a17e 100644
--- a/app/models/repository/cvs.rb
+++ b/app/models/repository/cvs.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/cvs_adapter'
+require_dependency 'redmine/scm/adapters/cvs_adapter'
 require 'digest/sha1'
 
 class Repository::Cvs < Repository
diff --git a/app/models/repository/darcs.rb b/app/models/repository/darcs.rb
index 1f5bf69a..96924de2 100644
--- a/app/models/repository/darcs.rb
+++ b/app/models/repository/darcs.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/darcs_adapter'
+require_dependency 'redmine/scm/adapters/darcs_adapter'
 
 class Repository::Darcs < Repository
   validates_presence_of :url, :log_encoding
diff --git a/app/models/repository/filesystem.rb b/app/models/repository/filesystem.rb
index 722e5316..7d6ffbeb 100644
--- a/app/models/repository/filesystem.rb
+++ b/app/models/repository/filesystem.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/filesystem_adapter'
+require_dependency 'redmine/scm/adapters/filesystem_adapter'
 
 class Repository::Filesystem < Repository
   attr_protected :root_url
diff --git a/app/models/repository/git.rb b/app/models/repository/git.rb
index 7817aff4..9bacac68 100644
--- a/app/models/repository/git.rb
+++ b/app/models/repository/git.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/git_adapter'
+require_dependency 'redmine/scm/adapters/git_adapter'
 
 class Repository::Git < Repository
   attr_protected :root_url
diff --git a/app/models/repository/mercurial.rb b/app/models/repository/mercurial.rb
index 24c9d7a7..a67826a1 100644
--- a/app/models/repository/mercurial.rb
+++ b/app/models/repository/mercurial.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/mercurial_adapter'
+require_dependency 'redmine/scm/adapters/mercurial_adapter'
 
 class Repository::Mercurial < Repository
   # sort changesets by revision number
diff --git a/app/models/repository/subversion.rb b/app/models/repository/subversion.rb
index 0515460d..19f8e26b 100644
--- a/app/models/repository/subversion.rb
+++ b/app/models/repository/subversion.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/subversion_adapter'
+require_dependency 'redmine/scm/adapters/subversion_adapter'
 
 class Repository::Subversion < Repository
   attr_protected :root_url
diff --git a/lib/redmine/scm/adapters/bazaar_adapter.rb b/lib/redmine/scm/adapters/bazaar_adapter.rb
index bbc44b4d..58b6e0b4 100644
--- a/lib/redmine/scm/adapters/bazaar_adapter.rb
+++ b/lib/redmine/scm/adapters/bazaar_adapter.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/abstract_adapter'
+require_dependency 'redmine/scm/adapters/abstract_adapter'
 
 module Redmine
   module Scm
diff --git a/lib/redmine/scm/adapters/cvs_adapter.rb b/lib/redmine/scm/adapters/cvs_adapter.rb
index 4a74df6a..cee5b701 100644
--- a/lib/redmine/scm/adapters/cvs_adapter.rb
+++ b/lib/redmine/scm/adapters/cvs_adapter.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/abstract_adapter'
+require_dependency 'redmine/scm/adapters/abstract_adapter'
 
 module Redmine
   module Scm
diff --git a/lib/redmine/scm/adapters/darcs_adapter.rb b/lib/redmine/scm/adapters/darcs_adapter.rb
index a31ee593..796efdb1 100644
--- a/lib/redmine/scm/adapters/darcs_adapter.rb
+++ b/lib/redmine/scm/adapters/darcs_adapter.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/abstract_adapter'
+require_dependency 'redmine/scm/adapters/abstract_adapter'
 require 'rexml/document'
 
 module Redmine
diff --git a/lib/redmine/scm/adapters/filesystem_adapter.rb b/lib/redmine/scm/adapters/filesystem_adapter.rb
index 9051093b..687e9534 100644
--- a/lib/redmine/scm/adapters/filesystem_adapter.rb
+++ b/lib/redmine/scm/adapters/filesystem_adapter.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/abstract_adapter'
+require_dependency 'redmine/scm/adapters/abstract_adapter'
 require 'find'
 
 module Redmine
diff --git a/lib/redmine/scm/adapters/git_adapter.rb b/lib/redmine/scm/adapters/git_adapter.rb
index 0674c22d..8f3008df 100644
--- a/lib/redmine/scm/adapters/git_adapter.rb
+++ b/lib/redmine/scm/adapters/git_adapter.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/abstract_adapter'
+require_dependency 'redmine/scm/adapters/abstract_adapter'
 
 module Redmine
   module Scm
diff --git a/lib/redmine/scm/adapters/mercurial_adapter.rb b/lib/redmine/scm/adapters/mercurial_adapter.rb
index 06d80c1f..c119e086 100644
--- a/lib/redmine/scm/adapters/mercurial_adapter.rb
+++ b/lib/redmine/scm/adapters/mercurial_adapter.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/abstract_adapter'
+require_dependency 'redmine/scm/adapters/abstract_adapter'
 require 'cgi'
 
 module Redmine
diff --git a/lib/redmine/scm/adapters/subversion_adapter.rb b/lib/redmine/scm/adapters/subversion_adapter.rb
index 1171a1ec..ab8b5d15 100644
--- a/lib/redmine/scm/adapters/subversion_adapter.rb
+++ b/lib/redmine/scm/adapters/subversion_adapter.rb
@@ -12,7 +12,7 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-require 'redmine/scm/adapters/abstract_adapter'
+require_dependency 'redmine/scm/adapters/abstract_adapter'
 require 'uri'
 
 module Redmine