diff --git a/lib/redmine/scm/adapters/abstract_adapter.rb b/lib/redmine/scm/adapters/abstract_adapter.rb
index 4a42548..bb46a48 100644
--- a/lib/redmine/scm/adapters/abstract_adapter.rb
+++ b/lib/redmine/scm/adapters/abstract_adapter.rb
@@ -220,7 +220,7 @@ module Redmine
           end
           if Rails.env == 'development'
             # Capture stderr when running in dev environment
-            cmd = "#{cmd} 2>>#{Rails.root}/log/scm.stderr.log"
+            cmd = "#{cmd} 2>>#{shell_quote(Rails.root.join('log/scm.stderr.log').to_s)}"
           end
           begin
             if RUBY_VERSION < '1.9'