diff --git a/src/components/middle/message/Poll.scss b/src/components/middle/message/Poll.scss
index 455a4a8ed..e32e69c91 100644
--- a/src/components/middle/message/Poll.scss
+++ b/src/components/middle/message/Poll.scss
@@ -114,7 +114,7 @@
     margin-top: -2px;
 
     .Avatar {
-      border: 0.0625rem solid var(--color-white);
+      border: 0.0625rem solid var(--color-background);
       margin-right: 0;
       box-sizing: content-box;