diff --git a/__tests__/__snapshots__/test.js.snap b/__tests__/__snapshots__/test.js.snap
index 620e7a0d8..249da3923 100644
--- a/__tests__/__snapshots__/test.js.snap
+++ b/__tests__/__snapshots__/test.js.snap
@@ -1549,6 +1549,9 @@ exports[`html nested.input.js 1`] = `
             placeholder='Filter'
             id='filter-input'
             class='col12 block input'
+            spellcheck='false'
+            autocapitalize='off'
+            autocorrect='off'
             type='text' />
           <div id='toc'>
             <ul class='list-reset h5 py1-ul'>
diff --git a/src/default_theme/index._ b/src/default_theme/index._
index caefed9a3..ead8c2dfc 100644
--- a/src/default_theme/index._
+++ b/src/default_theme/index._
@@ -21,6 +21,9 @@
             placeholder='Filter'
             id='filter-input'
             class='col12 block input'
+            spellcheck='false'
+            autocapitalize='off'
+            autocorrect='off'
             type='text' />
           <div id='toc'>
             <ul class='list-reset h5 py1-ul'>