diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -11,7 +11,7 @@
     'core.pkg.js' => 'cbdbd552',
     'darkconsole.pkg.js' => 'df001cab',
     'differential.pkg.css' => '8af45893',
-    'differential.pkg.js' => '85cb2027',
+    'differential.pkg.js' => '42c10e78',
     'diffusion.pkg.css' => '591664fa',
     'diffusion.pkg.js' => 'bfc0737b',
     'maniphest.pkg.css' => 'e34dfbec',
@@ -369,7 +369,7 @@
     'rsrc/js/application/differential/behavior-diff-radios.js' => 'e1ff79b1',
     'rsrc/js/application/differential/behavior-dropdown-menus.js' => '710f209e',
     'rsrc/js/application/differential/behavior-edit-inline-comments.js' => '00861799',
-    'rsrc/js/application/differential/behavior-keyboard-nav.js' => '8d199d97',
+    'rsrc/js/application/differential/behavior-keyboard-nav.js' => '2c426492',
     'rsrc/js/application/differential/behavior-populate.js' => 'bdb3e4d0',
     'rsrc/js/application/differential/behavior-show-all-comments.js' => '7c273581',
     'rsrc/js/application/differential/behavior-show-field-details.js' => 'bba9eedf',
@@ -572,7 +572,7 @@
     'javelin-behavior-differential-dropdown-menus' => '710f209e',
     'javelin-behavior-differential-edit-inline-comments' => '00861799',
     'javelin-behavior-differential-feedback-preview' => '6932def3',
-    'javelin-behavior-differential-keyboard-navigation' => '8d199d97',
+    'javelin-behavior-differential-keyboard-navigation' => '2c426492',
     'javelin-behavior-differential-populate' => 'bdb3e4d0',
     'javelin-behavior-differential-show-field-details' => 'bba9eedf',
     'javelin-behavior-differential-show-more' => 'dd7e8ef5',
@@ -1009,6 +1009,12 @@
       'javelin-stratcom',
       'javelin-dom',
     ),
+    '2c426492' => array(
+      'javelin-behavior',
+      'javelin-dom',
+      'javelin-stratcom',
+      'phabricator-keyboard-shortcut',
+    ),
     '2fa810fc' => array(
       'javelin-behavior',
       'javelin-dom',
@@ -1416,12 +1422,6 @@
       'javelin-uri',
       'phabricator-file-upload',
     ),
-    '8d199d97' => array(
-      'javelin-behavior',
-      'javelin-dom',
-      'javelin-stratcom',
-      'phabricator-keyboard-shortcut',
-    ),
     '8ef9ab58' => array(
       'javelin-behavior',
       'javelin-dom',
diff --git a/webroot/rsrc/js/application/differential/behavior-keyboard-nav.js b/webroot/rsrc/js/application/differential/behavior-keyboard-nav.js
--- a/webroot/rsrc/js/application/differential/behavior-keyboard-nav.js
+++ b/webroot/rsrc/js/application/differential/behavior-keyboard-nav.js
@@ -242,6 +242,10 @@
 
 
   function inline_op(node, op) {
+    // nothing selected
+    if (!node) {
+      return;
+    }
     if (!JX.DOM.scry(node, 'a', 'differential-inline-' + op)) {
       // No link for this operation, e.g. editing a comment you can't edit.
       return;