diff --git a/src/public/stylesheets/theme-dark.css b/src/public/stylesheets/theme-dark.css
index 8c01fb5a5..718b67b5d 100644
--- a/src/public/stylesheets/theme-dark.css
+++ b/src/public/stylesheets/theme-dark.css
@@ -88,3 +88,7 @@ body .CodeMirror {
 body .todo-list input[type="checkbox"]:not(:checked):before {
     border-color: var(--muted-text-color) !important;
 }
+
+.btn-close {
+    filter: invert(1);
+}