--- lib/redmine/scm/adapters/subversion_adapter.rb.original	2011-06-24 00:45:33.282690843 +0200
+++ lib/redmine/scm/adapters/subversion_adapter.rb	2011-06-24 01:29:38.627315182 +0200
@@ -260,7 +260,7 @@
           str = ''
           str << " --username #{shell_quote(@login)}" unless @login.blank?
           str << " --password #{shell_quote(@password)}" unless @login.blank? || @password.blank?
-          str << " --no-auth-cache --non-interactive"
+          str << " --trust-server-cert --no-auth-cache --non-interactive"
           str
         end