diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -12,7 +12,7 @@
     'core.pkg.css' => 'ac619266',
     'core.pkg.js' => '2eeda9e0',
     'dark-console.pkg.js' => '187792c2',
-    'differential.pkg.css' => '6d3700f0',
+    'differential.pkg.css' => '4eaaabe0',
     'differential.pkg.js' => '46fcb3af',
     'diffusion.pkg.css' => '354279ea',
     'diffusion.pkg.js' => '78c9885d',
@@ -63,7 +63,7 @@
     'rsrc/css/application/diff/diff-tree-view.css' => 'e2d3e222',
     'rsrc/css/application/diff/inline-comment-summary.css' => '81eb368d',
     'rsrc/css/application/differential/add-comment.css' => '7e5900d9',
-    'rsrc/css/application/differential/changeset-view.css' => '1b0476bc',
+    'rsrc/css/application/differential/changeset-view.css' => 'f9327ec8',
     'rsrc/css/application/differential/core.css' => '7300a73e',
     'rsrc/css/application/differential/phui-inline-comment.css' => '9863a85e',
     'rsrc/css/application/differential/revision-comment.css' => '7dbc8d1d',
@@ -560,7 +560,7 @@
     'conpherence-transaction-css' => '3a3f5e7e',
     'd3' => 'e97b4b78',
     'diff-tree-view-css' => 'e2d3e222',
-    'differential-changeset-view-css' => '1b0476bc',
+    'differential-changeset-view-css' => 'f9327ec8',
     'differential-core-view-css' => '7300a73e',
     'differential-revision-add-comment-css' => '7e5900d9',
     'differential-revision-comment-css' => '7dbc8d1d',
@@ -1056,9 +1056,6 @@
       'javelin-util',
       'phabricator-keyboard-shortcut-manager',
     ),
-    '1b0476bc' => array(
-      'phui-inline-comment-view-css',
-    ),
     '1b6acc2a' => array(
       'javelin-magical-init',
       'javelin-util',
@@ -2193,6 +2190,9 @@
       'javelin-view-visitor',
       'javelin-util',
     ),
+    'f9327ec8' => array(
+      'phui-inline-comment-view-css',
+    ),
     'fa6f30b2' => array(
       'javelin-behavior',
       'javelin-dom',
diff --git a/src/applications/differential/view/DifferentialChangesetDetailView.php b/src/applications/differential/view/DifferentialChangesetDetailView.php
--- a/src/applications/differential/view/DifferentialChangesetDetailView.php
+++ b/src/applications/differential/view/DifferentialChangesetDetailView.php
@@ -233,6 +233,22 @@
       $show_directory_uri = phutil_string_cast($show_directory_uri);
     }
 
+    Javelin::initBehavior('phabricator-clipboard-copy');
+    $path_copy_button = id(new PHUIButtonView())
+      ->setTag('a')
+      ->setColor(PHUIButtonView::GREY)
+      ->setIcon('fa-clipboard')
+      ->setHref('#')
+      ->addSigil('clipboard-copy')
+      ->addSigil('has-tooltip')
+      ->setMetadata(
+        array(
+          'tip' => pht('Copy file path'),
+          'text' => $display_filename,
+          'successMessage' => pht('File path copied.'),
+          'errorMessage' => pht('Copy of file path failed.'),
+        ));
+
     return javelin_tag(
       'div',
       array(
@@ -285,7 +301,19 @@
                 'class' => 'differential-changeset-path-name',
                 'sigil' => 'changeset-header-path-name',
               ),
-              $display_filename),
+              array(
+                $display_filename,
+                javelin_tag(
+                  'span',
+                  array(
+                    'class' => 'differential-changeset-path-copy-button',
+                    'meta' => array(
+                      'selectID' => $display_filename,
+                      'once' => true,
+                  ),
+                  ),
+                  $path_copy_button),
+              )),
           )),
         javelin_tag(
           'div',
diff --git a/webroot/rsrc/css/application/differential/changeset-view.css b/webroot/rsrc/css/application/differential/changeset-view.css
--- a/webroot/rsrc/css/application/differential/changeset-view.css
+++ b/webroot/rsrc/css/application/differential/changeset-view.css
@@ -349,6 +349,14 @@
   display: none;
 }
 
+.differential-changeset-path-copy-button {
+  padding-left: 10px;
+}
+
+.device-phone .differential-changeset-path-copy-button {
+  display: none;
+}
+
 .differential-changeset-buttons {
   float: right;
   margin-top: 16px;