diff --git a/postcss.config.js b/postcss.config.js
index d7f53cc6d2..40a1f9f70d 100644
--- a/postcss.config.js
+++ b/postcss.config.js
@@ -6,7 +6,7 @@ const {media_breakpoints} = require("./static/js/css_variables");
 
 module.exports = ({file}) => ({
     plugins: [
-        (file.basename ?? path.basename(file)) === "night_mode.css" &&
+        (file.basename ?? path.basename(file)) === "dark_theme.css" &&
             // Add postcss-import plugin with postcss-prefixwrap to handle
             // the flatpickr dark theme. We do this because flatpickr themes
             // are not scoped. See https://github.com/flatpickr/flatpickr/issues/2168.
diff --git a/static/js/bundles/app.js b/static/js/bundles/app.js
index 411310509e..ff1ec73e24 100644
--- a/static/js/bundles/app.js
+++ b/static/js/bundles/app.js
@@ -51,7 +51,7 @@ import "../../styles/popovers.css";
 import "../../styles/recent_topics.css";
 import "../../styles/typing_notifications.css";
 import "../../styles/hotspots.css";
-import "../../styles/night_mode.css";
+import "../../styles/dark_theme.css";
 import "../../styles/user_status.css";
 import "../../styles/widgets.css";
 
diff --git a/static/styles/night_mode.css b/static/styles/dark_theme.css
similarity index 100%
rename from static/styles/night_mode.css
rename to static/styles/dark_theme.css