diff --git a/src/form/input.js b/src/form/input.js
index 472b5b9..4ba5855 100644
--- a/src/form/input.js
+++ b/src/form/input.js
@@ -14,6 +14,7 @@ class Input extends Component {
     disabled: false,
     closeable: false,
     icon: '',
+    size: 'l',
     placeholder: '',
     maxlength: null,
     minlength: null,