diff --git a/src/Filtering/PostHiding.coffee b/src/Filtering/PostHiding.coffee
index 52c662ed1..1171cabac 100644
--- a/src/Filtering/PostHiding.coffee
+++ b/src/Filtering/PostHiding.coffee
@@ -29,7 +29,7 @@ PostHiding =
     if (sa = g.SITE.selectors.sideArrows)
       sideArrows = $ sa, @nodes.root
       $.replace sideArrows.firstChild, button
-      sideArrows.removeAttribute 'class'
+      sideArrows.className = 'replacedSideArrows'
     else
       $.prepend @nodes.root, button
 
diff --git a/src/css/style.css b/src/css/style.css
index 546218ad5..608b98d6e 100644
--- a/src/css/style.css
+++ b/src/css/style.css
@@ -1506,6 +1506,9 @@ input[name="Default Volume"] {
   margin-right: 4px;
   padding: 2px;
 }
+.replacedSideArrows {
+  float: left;
+}
 .hide-thread-button:not(:hover),
 .hide-reply-button:not(:hover) {
   opacity: 0.4;