diff --git a/doc/CHANGELOG b/doc/CHANGELOG.rdoc similarity index 100% rename from doc/CHANGELOG rename to doc/CHANGELOG.rdoc diff --git a/doc/COPYING b/doc/COPYING.rdoc similarity index 100% rename from doc/COPYING rename to doc/COPYING.rdoc diff --git a/doc/INSTALL b/doc/INSTALL.rdoc similarity index 100% rename from doc/INSTALL rename to doc/INSTALL.rdoc diff --git a/doc/RUNNING_TESTS b/doc/RUNNING_TESTS.rdoc similarity index 100% rename from doc/RUNNING_TESTS rename to doc/RUNNING_TESTS.rdoc diff --git a/doc/UPGRADING b/doc/UPGRADING.rdoc similarity index 100% rename from doc/UPGRADING rename to doc/UPGRADING.rdoc