diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -5288,6 +5288,7 @@
     'PhamePostEditConduitAPIMethod' => 'applications/phame/conduit/PhamePostEditConduitAPIMethod.php',
     'PhamePostEditController' => 'applications/phame/controller/post/PhamePostEditController.php',
     'PhamePostEditEngine' => 'applications/phame/editor/PhamePostEditEngine.php',
+    'PhamePostEditEngineLock' => 'applications/phame/editor/PhamePostEditEngineLock.php',
     'PhamePostEditor' => 'applications/phame/editor/PhamePostEditor.php',
     'PhamePostFerretEngine' => 'applications/phame/search/PhamePostFerretEngine.php',
     'PhamePostFulltextEngine' => 'applications/phame/search/PhamePostFulltextEngine.php',
@@ -12182,6 +12183,7 @@
       'PhabricatorDestructibleInterface',
       'PhabricatorTokenReceiverInterface',
       'PhabricatorConduitResultInterface',
+      'PhabricatorEditEngineLockableInterface',
       'PhabricatorFulltextInterface',
       'PhabricatorFerretInterface',
     ),
@@ -12192,6 +12194,7 @@
     'PhamePostEditConduitAPIMethod' => 'PhabricatorEditEngineAPIMethod',
     'PhamePostEditController' => 'PhamePostController',
     'PhamePostEditEngine' => 'PhabricatorEditEngine',
+    'PhamePostEditEngineLock' => 'PhabricatorEditEngineLock',
     'PhamePostEditor' => 'PhabricatorApplicationTransactionEditor',
     'PhamePostFerretEngine' => 'PhabricatorFerretEngine',
     'PhamePostFulltextEngine' => 'PhabricatorFulltextEngine',
diff --git a/src/applications/phame/editor/PhamePostEditEngineLock.php b/src/applications/phame/editor/PhamePostEditEngineLock.php
new file mode 100644
--- /dev/null
+++ b/src/applications/phame/editor/PhamePostEditEngineLock.php
@@ -0,0 +1,29 @@
+<?php
+
+final class PhamePostEditEngineLock
+  extends PhabricatorEditEngineLock {
+
+  public function willPromptUserForLockOverrideWithDialog(
+    AphrontDialogView $dialog) {
+
+    return $dialog
+      ->setTitle(pht('Edit Locked Post'))
+      ->appendParagraph(
+          pht('Comments are disabled for this post. Edit it anyway?'))
+      ->addSubmitButton(pht('Edit Post'));
+  }
+
+  public function willBlockUserInteractionWithDialog(
+    AphrontDialogView $dialog) {
+
+    return $dialog
+      ->setTitle(pht('Post Locked'))
+      ->appendParagraph(
+        pht('You can not interact with this post because it is locked.'));
+  }
+
+  public function getLockedObjectDisplayText() {
+    return pht('Comments have been disabled for this post.');
+  }
+
+}
diff --git a/src/applications/phame/storage/PhamePost.php b/src/applications/phame/storage/PhamePost.php
--- a/src/applications/phame/storage/PhamePost.php
+++ b/src/applications/phame/storage/PhamePost.php
@@ -11,6 +11,7 @@
     PhabricatorDestructibleInterface,
     PhabricatorTokenReceiverInterface,
     PhabricatorConduitResultInterface,
+    PhabricatorEditEngineLockableInterface,
     PhabricatorFulltextInterface,
     PhabricatorFerretInterface {
 
@@ -393,4 +394,11 @@
     return new PhamePostFerretEngine();
   }
 
+
+/* -(  PhabricatorEditEngineLockableInterface  )----------------------------- */
+
+  public function newEditEngineLock() {
+    return new PhamePostEditEngineLock();
+  }
+
 }