diff --git a/src/applications/diffusion/conduit/ConduitAPI_diffusion_readmequery_Method.php b/src/applications/diffusion/conduit/ConduitAPI_diffusion_readmequery_Method.php
--- a/src/applications/diffusion/conduit/ConduitAPI_diffusion_readmequery_Method.php
+++ b/src/applications/diffusion/conduit/ConduitAPI_diffusion_readmequery_Method.php
@@ -1,8 +1,5 @@
 <?php
 
-/**
- * @group conduit
- */
 final class ConduitAPI_diffusion_readmequery_Method
   extends ConduitAPI_diffusion_abstractquery_Method {
 
@@ -19,6 +16,7 @@
   protected function defineCustomParamTypes() {
     return array(
       'paths' => 'required array <string>',
+      'commit' => 'optional string',
     );
   }
 
diff --git a/src/applications/diffusion/controller/DiffusionBrowseDirectoryController.php b/src/applications/diffusion/controller/DiffusionBrowseDirectoryController.php
--- a/src/applications/diffusion/controller/DiffusionBrowseDirectoryController.php
+++ b/src/applications/diffusion/controller/DiffusionBrowseDirectoryController.php
@@ -70,6 +70,7 @@
       'diffusion.readmequery',
       array(
         'paths' => $results->getPathDicts(),
+        'commit' => $drequest->getStableCommit(),
       ));
     if ($readme) {
       $box = new PHUIBoxView();
diff --git a/src/applications/diffusion/controller/DiffusionRepositoryController.php b/src/applications/diffusion/controller/DiffusionRepositoryController.php
--- a/src/applications/diffusion/controller/DiffusionRepositoryController.php
+++ b/src/applications/diffusion/controller/DiffusionRepositoryController.php
@@ -83,7 +83,8 @@
       $readme = $this->callConduitWithDiffusionRequest(
         'diffusion.readmequery',
         array(
-         'paths' => $browse_results->getPathDicts()
+         'paths' => $browse_results->getPathDicts(),
+         'commit' => $drequest->getStableCommit(),
         ));
     } else {
       $readme = null;