diff --git a/src/librustdoc/html/static/js/main.js b/src/librustdoc/html/static/js/main.js
index 3ea9de381eca6..0c71cf1907d6c 100644
--- a/src/librustdoc/html/static/js/main.js
+++ b/src/librustdoc/html/static/js/main.js
@@ -265,7 +265,7 @@ function preLoadCss(cssUrl) {
                             aria-label="Run search in the documentation"
                             autocomplete="off"
                             spellcheck="false"
-                            placeholder="Type ‘S’ or ‘/’ to search, ‘?’ for more options…"
+                            placeholder="Search API docs"
                             type="search">
                     </form>
                 </nav><div class="search-switcher"></div>`;
@@ -683,6 +683,7 @@ function preLoadCss(cssUrl) {
                 break;
 
             case "+":
+            case "=":
                 ev.preventDefault();
                 expandAllDocs();
                 break;
@@ -1620,7 +1621,7 @@ function preLoadCss(cssUrl) {
             ["↓", "Move down in search results"],
             ["← / →", "Switch result tab (when results focused)"],
             ["&#9166;", "Go to active search result"],
-            ["+", "Expand all sections"],
+            ["+ / =", "Expand all sections"],
             ["-", "Collapse all sections"],
             // for the sake of brevity, we don't say "inherit impl blocks",
             // although that would be more correct,