diff --git a/nummi/history/templates/history/plot.html b/nummi/history/templates/history/plot.html
index f8d041c..6231995 100644
--- a/nummi/history/templates/history/plot.html
+++ b/nummi/history/templates/history/plot.html
@@ -1,7 +1,7 @@
 {% load main_extras %}
 {% load history_extras %}
 {% load i18n %}
-<div class="plot">
+<div class="history plot">
     <table class="full-width">
         <colgroup>
             <col class="icon">
diff --git a/nummi/main/static/main/css/plot.css b/nummi/main/static/main/css/plot.css
index 4f7e7fa..c568d3d 100644
--- a/nummi/main/static/main/css/plot.css
+++ b/nummi/main/static/main/css/plot.css
@@ -66,7 +66,7 @@ table.full-width col.bar {
     }
   }
 
-  .history & tbody tr {
+  &.history tbody tr {
     background: initial;
   }
   tbody tr {