diff --git a/src/Symfony/Component/VarDumper/Dumper/HtmlDumper.php b/src/Symfony/Component/VarDumper/Dumper/HtmlDumper.php
index 6553d85c8f..8c5c2c0ae8 100644
--- a/src/Symfony/Component/VarDumper/Dumper/HtmlDumper.php
+++ b/src/Symfony/Component/VarDumper/Dumper/HtmlDumper.php
@@ -116,6 +116,7 @@ Sfdump = window.Sfdump || (function (doc) {
 var refStyle = doc.createElement('style'),
     rxEsc = /([.*+?^${}()|\[\]\/\\])/g,
     idRx = /\bsf-dump-\d+-ref[012]\w+\b/,
+    keyHint = 0 <= navigator.platform.toUpperCase().indexOf('MAC') ? 'Cmd' : 'Ctrl',
     addEventListener = function (e, n, cb) {
         e.addEventListener(n, cb, false);
     };
@@ -255,7 +256,7 @@ return function (root) {
             } else {
                 a.innerHTML += ' ';
             }
-            a.title = (a.title ? a.title+'\n' : '')+'[Ctrl+click] Expand all children';
+            a.title = (a.title ? a.title+'\n[' : '[')+keyHint+'+click] Expand all children';
             a.innerHTML += '<span>▼</span>';
             a.className += ' sf-dump-toggle';
             if ('sf-dump' != elt.parentNode.className) {
@@ -388,7 +389,7 @@ EOHTML;
             $style .= sprintf(' title="%s%s characters"', $attr['length'], $attr['binary'] ? ' binary or non-UTF-8' : '');
         } elseif ('note' === $style) {
             if (false !== $c = strrpos($v, '\\')) {
-                return sprintf('<abbr title="%s" class=sf-dump-%s>%s</abbr>', $v, $style, substr($v, $c+1));
+                return sprintf('<abbr title="%s" class=sf-dump-%s>%s</abbr>', $v, $style, substr($v, $c + 1));
             } elseif (':' === $v[0]) {
                 return sprintf('<abbr title="`%s` resource" class=sf-dump-%s>%s</abbr>', substr($v, 1), $style, $v);
             }