diff --git a/components/input-number/style/index.less b/components/input-number/style/index.less
index 7771f47083..c5089ea152 100644
--- a/components/input-number/style/index.less
+++ b/components/input-number/style/index.less
@@ -79,6 +79,7 @@
     border: 0;
     border-radius: @border-radius-base;
     padding: 0 7px;
+    display: block;
     .placeholder();
 
     &[disabled] {