diff --git a/internal_packages/thread-list/stylesheets/thread-list.less b/internal_packages/thread-list/stylesheets/thread-list.less
index 9b29cfd7a..f13a6375e 100644
--- a/internal_packages/thread-list/stylesheets/thread-list.less
+++ b/internal_packages/thread-list/stylesheets/thread-list.less
@@ -325,7 +325,7 @@ body.platform-win32 {
     font-size: @font-size-base;
   }
   .thread-icon {
-    margin-right:6px;
+    margin-right:4px;
   }
 
   .mail-important-icon {