diff --git a/app/src/pages/trace/SpanAside.tsx b/app/src/pages/trace/SpanAside.tsx
index 258f0dfa2c..4f92262d2b 100644
--- a/app/src/pages/trace/SpanAside.tsx
+++ b/app/src/pages/trace/SpanAside.tsx
@@ -72,7 +72,7 @@ export function SpanAside(props: { span: SpanAside_span$key }) {
     <View
       padding="size-200"
       borderColor="dark"
-      backgroundColor="light"
+      backgroundColor="dark"
       borderLeftWidth="thin"
       width="210px"
       flex="none"