diff --git a/src/components/input-number/input-number.vue b/src/components/input-number/input-number.vue
index 19fc85b6..f3b6e2dc 100644
--- a/src/components/input-number/input-number.vue
+++ b/src/components/input-number/input-number.vue
@@ -86,7 +86,7 @@
             },
             value: {
                 type: Number,
-                default: 1
+                default: null,
             },
             size: {
                 validator (value) {