diff --git a/packages/theme-chalk/src/input-number.scss b/packages/theme-chalk/src/input-number.scss
index 52d7953547..6d1c44b66c 100644
--- a/packages/theme-chalk/src/input-number.scss
+++ b/packages/theme-chalk/src/input-number.scss
@@ -50,7 +50,7 @@
     &:hover {
       color: getCssVar('color-primary');
 
-      & ~ .#{$namespace}-input:not(.is-disabled) .#{$namespace}-input_wrapper {
+      & ~ .#{$namespace}-input:not(.is-disabled) .#{$namespace}-input__wrapper {
         box-shadow: 0 0 0 1px
           var(
             #{getCssVarName('input', 'focus-border-color')},