diff --git a/static/styles/dark.css b/static/styles/dark.css
index f7abc0b2ca..44b5a4f55e 100644
--- a/static/styles/dark.css
+++ b/static/styles/dark.css
@@ -270,3 +270,14 @@ body.dark-mode .user-mention-me {
     background: hsla(355, 37%, 31%, 1);
     box-shadow: 0px 0px 0px 1px hsla(330, 40%, 20%, 1);
 }
+
+body.dark-mode .alert-box .alert {
+    background: hsl(318, 12%, 21%);
+    color: inherit;
+
+    border: 1px solid hsl(0, 75%, 65%);
+}
+
+body.dark-mode .alert-box .alert.alert-error::before {
+    color: 1px solid hsl(0, 75%, 65%);
+}