diff --git a/frontend/src/metabase/pulse/components/PulseEditChannels.jsx b/frontend/src/metabase/pulse/components/PulseEditChannels.jsx
index 26f64805efdac5e48ae94e133c9707da7e030dbc..6dd43b1d1a6e16d2c117f848193f39873b85c140 100644
--- a/frontend/src/metabase/pulse/components/PulseEditChannels.jsx
+++ b/frontend/src/metabase/pulse/components/PulseEditChannels.jsx
@@ -297,7 +297,7 @@ export default class PulseEditChannels extends Component {
       slack: { name: t`Slack`, type: "slack" },
     };
     return (
-      <ul className="bordered rounded">
+      <ul className="bordered rounded bg-white">
         {Object.values(channels).map(channelSpec =>
           this.renderChannelSection(channelSpec),
         )}