diff --git a/edit.html b/edit.html
index 008a8cc7..ef364bf9 100644
--- a/edit.html
+++ b/edit.html
@@ -80,7 +80,7 @@
           <option value="domain" i18n-text="appliesDomainOption"></option>
           <option value="regexp" i18n-text="appliesRegexpOption"></option>
         </select>
-        <input name="applies-value" class="applies-value style-contributor">
+        <input name="applies-value" class="applies-value style-contributor" spellcheck="false">
         <button class="remove-applies-to" i18n-text="appliesRemove"></button>
         <button class="add-applies-to" i18n-text="appliesAdd"></button>
       </li>
@@ -157,7 +157,7 @@
         <thead>
           <tr>
             <th><input i18n-placeholder="helpKeyMapHotkey" type="search" class="can-close-on-esc"></th>
-            <th><input i18n-placeholder="helpKeyMapCommand" type="search" class="can-close-on-esc"></th>
+            <th><input i18n-placeholder="helpKeyMapCommand" type="search" class="can-close-on-esc" spellcheck="false"></th>
           </tr>
         </thead>
         <tbody>
diff --git a/edit/applies-to-line-widget.js b/edit/applies-to-line-widget.js
index f3687213..91d26f63 100644
--- a/edit/applies-to-line-widget.js
+++ b/edit/applies-to-line-widget.js
@@ -37,7 +37,7 @@ function createAppliesToLineWidget(cm) {
             $create('option', {value: 'domain'}, t('appliesDomainOption')),
             $create('option', {value: 'regexp'}, t('appliesRegexpOption')),
           ]),
-          $create('input.applies-value'),
+          $create('input.applies-value', {spellcheck: false}),
           $create('button.test-regexp', t('styleRegexpTestButton')),
           $create('button.remove-applies-to', t('appliesRemove')),
           $create('button.add-applies-to', t('appliesAdd')),