diff --git a/components/spin/style/index.less b/components/spin/style/index.less
index 9c96bdc70dbb..a211d7a1d1f9 100644
--- a/components/spin/style/index.less
+++ b/components/spin/style/index.less
@@ -124,7 +124,7 @@
     display: inline-block;
     font-size: @spin-dot-size;
 
-    .square(@spin-dot-size);
+    .square(1em);
 
     &-item {
       position: absolute;
@@ -172,7 +172,6 @@
   &-sm &-dot {
     font-size: @spin-dot-size-sm;
 
-    .square(@spin-dot-size-sm);
     i {
       width: 6px;
       height: 6px;
@@ -183,7 +182,6 @@
   &-lg &-dot {
     font-size: @spin-dot-size-lg;
 
-    .square(@spin-dot-size-lg);
     i {
       width: 14px;
       height: 14px;