diff --git a/app/assets/stylesheets/mixins.css.scss b/app/assets/stylesheets/mixins.css.scss
index 528171b2..88474893 100644
--- a/app/assets/stylesheets/mixins.css.scss
+++ b/app/assets/stylesheets/mixins.css.scss
@@ -101,7 +101,7 @@ $cubic_bevier: cubic-bezier(.5,1.2,.6,1);
 		position: absolute;
 		border: $size solid $color;
 		border-bottom: none;
-		border-left: none;
+		border-right: none;
 		border-top-left-radius: $size;
 		right: 0;
 		bottom: 0;