diff --git a/routes/_components/compose/ComposeBox.html b/routes/_components/compose/ComposeBox.html
index 1f82b124..0615d604 100644
--- a/routes/_components/compose/ComposeBox.html
+++ b/routes/_components/compose/ComposeBox.html
@@ -37,7 +37,7 @@
 
   .compose-box.dialog-size {
     width: 540px;
-    max-width: calc(100vw - 80px);
+    max-width: calc(100vw - 60px);
   }
 
   .compose-box-border-bottom {